Showing posts with label Nutrition Posts. Show all posts
Showing posts with label Nutrition Posts. Show all posts

Thursday, August 16, 2012

Cereals

source
 
Remember the days when a bowl of Frosted Flakes or Cocoa Puffs would cover your basic child needs? Those are now the days long gone as we look to better our lifestyles, and work to fill our bodies with a satisfying breakfast that can power us through our busy schedules. Although breakfast is my favorite meal, sometimes all I want is a bowl of cereal, and I'm sure I'm not alone on this! Today we are going to look at what makes a "good" bowl of cereal.

1. Fiber. Yes a nice fibrous will help to keep you full and therefore focused throughout the day. But here is the thing, most cereals don't have the real kind of fiber our bodies need. So instead of looking for the word fiber, which could lead to fake fiber, search for a cereal that has whole grains and is low in sugar. It's safe to say that if the word 'whole' proceeds the grain, then it isn't refined. However, if whole does not proceed the grain, you can assumed its been refined.

2. Ignore bogus claims. Fake fruits. Yes the box says there are REAL strawberries floating in your cereal, but lets be honest. Those strawberries that have been sitting in the box on a shelf for who knows how long can't possibly be fresh. More than likely those strawberries, or any fruit, is gelatin filled and a mixture of food dyes. If you desire fruit in your cereal I suggest purchasing the fruit and adding as you go.

3. Sugar. Be wary of the sugar in that small bowl. When deciding if a cereal is too sugary, checking the label is best. For example, if the cereal has 10 grams of sugar and the serving size is 30 grams, well then the cereal is 1/3 sugar. Yikes! But if you're eating something such as Raisin Bran, then the sugars are natural.

By reading the label and knowing what you are in search of, choosing a cereal can become quite simple. Now, here are some cereals that file under "a good breakfast."

Kashi GOLEAN
Whole Foods 365 Organic Raisin Bran
General Mills Fiber One
Post Bran Flakes
Kellog's Frosted Mini-Wheats Little Bites

Wednesday, August 15, 2012

The Incredible Egg



Today lets talk about eggs. Yes, eggs. The incredible egg in fact. Now we've all seen the commercials for the incredible egg but do you actually know how good they are for you? While eggs are full of vitamins and minerals, they also are less than 15 cents per egg, have approximately 70 calories, and are an all natural resource. Plus with all the nutrients, eggs can play a vital role in pregnancy, muscle strength, weight management, eye health, and brain function! Not only can eggs do all that, but eggs are of the highest quality of protein.  How do eggs play a part in all of the areas mentioned above?

Pregnancy: Eggs are an excellent source of choline which is an essential nutrient that contributes to fetal brain development and helps prevent birth defects.

Muscle Strength: Due to eggs having the highest quality of protein, this helps active adults build and maintain their muscle strength.

Weight Management: Not only does the protein in eggs help build muscle strength, but will keep you full and energized longer throughout the day. And that's exactly what you should be looking for in a breakfast item, staying full and energized.

Eye Health: There are two antioxidants in eggs that help prevent macular degeneration, which is the leading cause of age-related blindness, lutein and zeaxanthin. And according to this article, although the amounts lutein in eggs is small, eggs have been found to be a more bio available resource than other food sources. 

Brain Function: Choline, which is vital for fetal brain development continues to work in adult brains as well. Choline aids the brain function that maintains important structures that are a key component of the neurotransmitter that relays messages from the brain to the muscles in our bodies.

Wow! I can't believe just a simple egg can do all of that!! My favorite way of incorporating eggs into my breakfast meal is with an omelet. Eggs are great vehicles for adding other ingredients, and bonus they only take a few minutes to whip up!

The Spinach Ham & Cheese Omelet


prep: 5 minutes
cook time: 5 minutes
servings: 1 to 2

ingredients
2 eggs
2 tbsp water
1 tsp butter
salt & pepper
1/4 cup of shredded Italian cheese blend (1 oz)
1/4 cup baby spinach
1/4 cup finely chopped ham
  1. Beat eggs and water in small bowl until blended.
  2. Heat butter in 7 to 10-inch nonstick omelet pan or skillet over medium-high heat until hot. Tilt pan to coat bottom. Pour in egg mixture. Mixture should set immediately at edges.
  3. Gently push cooked portions from edges toward the center with inverted turner so that uncooked eggs can reach the hot pan surface. Continue cooking, tilting pan and gently moving cooked portions as needed.
  4. When top surface of eggs is thickened and no visible liquid egg remains, season with salt and pepper. Place cheese on one side of omelet; top with spinach and ham. Fold omelet in half with turner. With a quick flip of the wrist, turn pan and invert or slide omelet onto plate. Serve immediately.
Nutritional Information
calories: 299
total fat: 20g
saturated fat: 9g
cholesterol: 418mg
sodium: 642mg
carbohydrates: 2g
protein: 25g
vitamin A: 1,262.3IU
vitamin D: 91.9IU
folate: 47.4mcg
calcium: 264.9mg
iron: 2.2mg
choline: 274.2mg

I can't wait to try out more omelets now knowing how wonderful they are for my body! 


Sources:
incredibleegg.org
Journal of Nutrition 
www.sxc.hu

Tuesday, August 14, 2012

Breakfast series: On the run!

Today we will be looking at a few options for breakfast while on the run! As a college student I understand breakfast while on the run, literally on the run out the door. Here are a few tips on how to squeeze in that oh so beneficial breakfast!

1. Make breakfast the night before! Preparing a simple casserole the night before that takes just a few minutes to heat up can really speed up a morning! What about dicing those fruits the night before? The secret to keeping fruits fresh? Pineapple juice! The juice will help to keep the fruit fresh and moist, and from turning that awful brown color.



2. Plan ahead. Work have a refrigerator? Take a thermos of milk with you to pour over that fibrous cereal. This will also help cut down on expenses spent buying milk en route to work and time! Shop for convenient breakfast food that can travel with you. I'm a big fan of granola bars, muffins, and portable fruit, like bananas.

3. Set the alarm 10 minutes earlier. You'd be surprised what you can do with that extra 10 minutes. A majority of breakfast items take no longer than 10 minutes which means you could be sitting down to an omelet!

4. Stock up on breakfast essentials for your office/backpack. If you can't eat en route or prior to leaving your home, eat when you reach your destination. You'll be less likely to hit up the vending machine later in the day if you already have a healthy option on hand. Students, taking a granola bar or muffin with you in your backpack and eating at your desk is acceptable! More than likely your classmates will envy your focus and full stomach.

www.sxc.hu


5. Be flexible!! Maybe your day starts with an early morning workout or office meeting, that's ok! Whats not okay, a grumbly tummy hours before lunchtime. Try to squeeze in a quick meal during your morning. Having that desk or backpack stocked will make having breakfast a bit easier.


Monday, August 13, 2012

Breakfast Series : Take One

As most of us know breakfast is the most important meal of our days, and yet a majority of people still don't fit breakfast into their routines. Breakfast just happens to be my favorite meal of the day! Over the next week I will answer some questions on why breakfast is so important and introduce some healthy options.



Why is breakfast the most important meal of the day?

When you first wake up in the morning, about 8 to 12 hours has passed since your last meal. By now your body has gone into fast mode. Science has proven that the brain sends signals at intervals to your body on when to use the calories and when to store them as fat, this is the starvation mode. This is why eating when you first awake is best. Eating upon waking will break the fast, hence breakfast, and fire up that metabolism. Not only does eating breakfast jump start your metabolism, its also a jump start to consuming those 5-10 servings of fruits and vegetables!!

Still not convinced to eat breakfast? Not to worry, I'll be sprinkling some more great reasons throughout the week!!

1. Breakfast boosts mental performance.
A study done by Harvard showed that student's math scores increased by 40 percent, and resulted in a decreased rate in tardiness, absences, and hyperactivity. The study also found a decrease in depression and anxiety among the students. Although this study was done on children, its assumed the results relate to adults as well.

Check back tomorrow for a healthy breakfast on the run!

 A great article to check out : Learn to Love Breakfast

Tuesday, March 6, 2012

Dairy Mythbusting

Dietary myths have been in existence throughout recorded history and the emergence of the internet has only accelerated the spread of such myths and erroneous information. Americans are often led astray by dietary myths due to their interest in diet, food, and health. Unfortunately, food myths can cause avoidance of healthy foods and even lead to nutritional deficiencies. Some of the most common diet myths involve dairy products. Let's take a look at the three most common myths diary and what the current research says.

Myth 1:  Organic milk is better for you than regular milk
Result: False

There has been no conclusive evidence that organic milk is superior to conventional milk in quality, composition, or food safety. Both organic and conventional milk products contain all the same essential nutritional components [1]. 
Note: If you are consuming an organic milk product, be sure it has been pasteurized. Unpasteurized (RAW) milk can contain dangerous disease causing microorganisms [2]. 

Myth 2: Hormones in milk cause early puberty in girls
Result: False

It is common for dairy cows to receive the hormone rBGH (a hormone already naturally found in lactating cows) to increase milk production. This has led to some concern that these hormones may pass on to milk consumers and lead to early puberty in girls. However, multiple randomized control studies have found that when dairy cattle are treated with this hormone there is no increase in the amount of hormones absorbed by individuals who then consume the milk [3]. Young girls who consume dairy products from cows that have received rBGH are not at risk of early puberty. 

Myth 3: Dairy makes you gain weight
Result: False

Since many dairy products can be calorically dense and higher in fat that other foods, some individuals are concerned that consuming dairy can lead to weight gain. However, the research has shown that consuming dairy products on a regular basis can actually contribute to weight loss and maintenance [1, 4]. Just be sure that you are counting dairy products in your overall daily caloric intake. 

Dairy products are a great source of protein, healthy fats, vitamins, and minerals. Don't let false nutrition information keep you from consuming a well-balanced diet, always go to the peer-reviewed, published research!

References:

1- Bhatia J. Debunking dairy food myths. Academy of Nutrition and Dietetics Nutrition Fact Sheet. 2007
2- Oliver SP, Boor KJ, Murphy SC, Murinda SE. Food safety hazards associated with consumption of raw milk. Foodborne Pathog Dis. 2009 Sep;6(7):793-806.
3- Juskevich JC, Guyer CG. Bovine growth hormone: human food safety evaluation. Science. 1990 Aug 24;249(4971):875-84.
4- Berkey CS, Rockett HR, Willett WC, Colditz GA. Milk, dairy fat, dietary calcium, and weight gain: a longitudinal study of adolescents. Arch Pediatr Adolesc Med. 2005 Jun;159(6):543-50.

Photo Credit: Rob Waterhouse via www.sxc.hu

Tuesday, January 24, 2012

The Organic Question (Part II)

Now that we've learned how to interpret Organic labels (Part I), the next question is what does organic mean for your health?

Several recent studies explored if there are any nutritional differences between organic foods and foods produced using conventional methods. A review of the literature reveals mixed results [1,2]. Only two significant nutritional differences have been identified: nitrate levels are lower in organic foods and Vitamin C levels are higher in organic leafy vegetables. However, there is no clear research defining the effects of these differences in human health. While it makes sense that lower nitrate levels (i.e. less fertilizer, pesticides) might be beneficial, there are no long term studies to verify or disprove any potential health benefits.

The United States Department of Agriculture (USDA) has identified the twelve "dirtiest" fruits and vegetables. These are the fruits and vegetables that have been shown to have the highest levels of pesticide residue when produced using conventional methods. If you would like to incorporate more organic foods into your diet, these foods may be a good place to start.

The USDA Dirty Dozen
1. Apples
2. Celery
3. Strawberries
4. Peaches
5. Spinach
6. Nectarines (imported)
7. Grapes (imported)
8. Bell Peppers
9. Potatoes
10. Blueberries
11. Lettuce
12. Kale and Collard Greens

Next week in Part III of The Organic Question we'll explore the potential environmental benefits of Organic farming practices.

References
1- Williams, CM. Nutritional quality of organic food: shades of grey or shades of green? Proc Nutr Soc. 2002 Feb;61(1):19-24.
2- Magkos F, Arvaniti F, Zampelas A. Organic food: buying more safety or just peace of mind? A critical review of the literature. Crit Rev Food Sci Nutr. 2006;46(1):23-56.
3- www.usda.gov

Photo credit: Ralphael Pinto via www.sxc.hu

Friday, January 13, 2012

The Organic Question (Part I)

"Organic Frozen Waffles" caught my eye in the grocery store yesterday. Organic Waffles? Really? How important is it that my frozen waffles be organic? I thought that I knew what organic ment, "grown without pesticides", but the frozen pastries made me wonder what all this "Organic" business is really all about. In this three part series I'd like to share what the term Organic means and what the current research says about what Organic means for your health and the health of the planet.

Part I : What Does Organic Mean?

Organic is a term monitored by the United States Department of Agriculture (USDA) and all foods using this claim must follow specific guidelines [1] :

1. Organic Meat - (includes eggs and dairy products) means that the animals providing the product
have not been given any antibiotics or growth hormones.
   
2. Organic Plant Products - the plant cannot be sprayed with most conventional pesticides, cannot have been fertilized with synthetic ingredients, and cannot have been fertilized with sewage. The plants must also not be bioengineered or exposed to ionizing radiation.

Other Organic regulations apply to food processing and can carry one of the following three labels:
100% Organic- Products that are completely Organic or are made only from completely Organic
ingredients.
Organic- Products that are made from at least 95% Organic ingredients
Made with Organic Ingredients- Products that are made from at least 70% Organic ingredients

Therefore, according to the USDA labeling regulations, my Organic Frozen Waffles were waffels that had been made with at least 95% Organic ingredients. Tune in next week for Part II when we will explore the current research on the health benefits of choosing Organic foods.


References:
1- American Dietetic Association. What does Organic on a Food Label Mean? http://www.eatright.org/Public/content.aspx?id=6442451536&terms=organic

Friday, December 9, 2011

Tips for Reaching 2012 in the Same Size Pants as Right Now

There's going to be so much glad tidings and holiday cheer going around the next couple of weeks that you might find it difficult to fit into your party clothes on New Years Eve. While all the yummy goodies are part of what makes the holidays so special and fun, it's important to make sure that you don't start next year doing a less-than-jolly Santa impression. So amid all the eggnog toasting and cookie making be sure to do a few simple things to ensure that you start next year off with a song and not a wimper.

1. Use a smaller plate/glass: Studies have shown that the larger your portion size, the more you will eat [1]. A smaller plate or glass can be automatically limiting of your portion size and therefore help you eat a smaller portion of mashed potatoes instead of a mountain.

2. Eat at a table: It may not be feasible at every holiday occasion this year, but whenever you have the opportunity, sit down at a table to eat. Focusing on what you are eating will help you avoid the mindless-grazing trap as well as give you a better idea of how much you are actually consuming.

3. Eat the healthy stuff first: I'm sure you've heard this before, but it's true, eat healthy (and low calorie) fruits and vegetables first before you go back and load up your plate with the more decadent dishes. Research supports the idea that consuming low-calorie foods first will help you consume less of the calorie-dense foods later [1]. But beware! Dips for fruits and veggies can pack a heavy calorie punch so keep them to a minimum.

4. Drink Water: I've said it before and I'll continue to say it, water is important stuff! Drinking water before and during meals has been shown in numerous studies to reduce caloric intake, prevent weight gain, and assist with weight loss [2]. So pour yourself a tall, refreshing glass of water and indulge!

5. Watch out for Nuts: There's everywhere this time of year - hiding in cookies and green beans and stuffing. Don't get me wrong, nuts are a fantastic source of healthy fats and are an excellent part of a healthy diet. However, nuts are best eaten in smaller quantities because they are calorically dense. A serving size of most nuts is around two tablespoons [3], and it sure doesn't take many roasted chestnuts to equal that amount.

Nobody wants to spend the Holiday Season worrying over everything they eat. This is the time of the year to celebrate and be merry. However, by being just a little more mindful about your eating habits you can carry a joyful spirit into the new year instead of added pounds.

Check out the Blog on Tuesday for some great healthy snacks for holiday parties!

Happy Holidays From UNSA!


References:

1- Ello-Martin JA, Ledikwe JH, Rolls BJ. The influence of food portion size and energy density on energy intake: implications for weight management. Am J Clin Nutr. 2005 Jul;82(1 Suppl):236S-241S.
2- Dennis EA, Flack KD, Davy BM. Beverage consumption and adult weight management: A review. Eat Behav. 2009 Dec;10(4):237-46. Epub 2009 Jul 16.
3- American Dietetic Association. Food Nutrient Data for Choose Your Foods. Exchange Lists for Diabetes, 2007.

Photo Credit: Mike Lorenzo via www.sxc.hu

Saturday, November 26, 2011

Study Healthy: Top 5 Tips

Crunch time is on for thousands of students nation-wide. Finals week is probably one of the most stressful times of the year. You'll likely be operating on adrenaline and very little sleep as you become consumed by non-stop study and panic. While this dreaded time is one of the challenges of college, there are some healthy things you can do to help soothe some of your stress and keep your body from breaking down due to abuse. So before your marathon sprint to the finish starts, take a few moments and make a plan to stay as healthy as possible during this last leg of the semester.

1. Water is your friend. I know most of you will be living on coffee and soda during finals in order to get a caffeine boost. However, dehydration is a beast! If you're not getting enough water, especially with all that caffeine, you'll likely develop an awful headache and may have trouble staying focused. So do yourself a favor and be sure alternate your caffeinated beverages with water.

2. Snack Healthy (or at least Healthier). During stressful times we tend to turn to high-calorie snacks like potato chips. The salt, fat, and crunch seem irresistible. Try stocking up on crunchy veggies instead, like baby carrots, cucumbers, and celery or a crunchy and sweet fruit like apple slices. If you just can't picture yourself being that healthy then grab some pretzels instead. Pretzels will give you a little salt and the crunch without all the saturated fat.

3. Get some sleep. Yeah, I know you're rolling your eyes thinking about how you have so much studying to do that you don't have time to sleep. But think about this, according to the National Institute of Neurological disorders and Stroke, people who are sleep deprived preform as badly or worse than people who are intoxicated (>0.08 blood alcohol) (1). You can quickly become sleep deprived if you are getting 5-6 hours of sleep or less a night. You wouldn't drink a six-pack and then go take your calculus final, so get enough sleep the night before your exam to ensure you are able to remember all that studying you did.

4. Go for a walk. Our brains are only able to stay focused on the same task for a limited amount of time. Sitting there re-reading your biology notes for 18th time isn't going to help if none of the words are sinking into your brain. You'll actually be able to focus better if you take breaks, and what better way to take a break than to go for a quick walk around your block. A brisk walk outside with getting your blood pumping, wake you up, and help you to focus better when you return to your studies as well as remember what you study (2). Besides, you'll need to get some physical activity to burn off all those calories from the unhealthy snacks you're eating because you didn't take my healthy snacking advice.

5. Disconnect. That's right, turn off your smart phone and log out of Facebook. If you actually focus on studying while you're studying instead of learning about what your best friend's room-mate's cousin's Ex did last weekend in Vegas, you might have time to do some other important things like go for a walk, or get a good night's sleep.

Finals are the last barrier between you and the school-free joy of Winter Break. Don't spend your precious freedom recuperating because you've trashed your brain and body during exams. Take the time to take care of yourself during finals and you'll avoid feeling and functioning like a brain-dead zombie.

Good Luck on Finals Everybody!


References:
1-  National Institute of Neurological Disorders and Stroke. Brain Basics: Understanding Sleep. Retrieved from: http://www.ninds.nih.gov/disorders/brain_basics/understanding_sleep.htm
2- Salas, C., Minakata, K., and Kelemen, W. (2011). Walking before study enhances free recall but not judgement-of-learning magnitude. Journal of Cognitive Psychology, 23 (4), 507-513

Photo Credit: Arjun Kartha via www.sxc.hu

Tuesday, November 22, 2011

Turkey Day Temperature Tips

Tis' the season of Thanksgiving which means parties, family, and Food Food Food. With delicious treats tempting you in every direction, food safety probably won't cross your mind. However the last thing you want is to spend this holiday with your family and friends in the Emergency Room due to food poisoning. So take a few moments to review these important temperature tips and avoid all the moaning, groaning, and general unpleasantness lurking in that lukewarm bowl of potato salad.

Rule Number One: If you don't have a kitchen thermometer, get one! And be sure you check out the instructions to make sure you know how to calibrate and use it correctly. And always stick your thermometer in at the thickest part of the food or the thickest part of the meat away from the bone.

Turkey Thawing: If you think simply placing your turkey in the kitchen sink overnight is a good way to thaw, get ready to say Hello a bacterial bonanza. Thawing your turkey in the fridge is the best method with each 3-4 lbs requiring 24 hours of thawing. However, if you're running short on time either use your Microwave to defrost or thaw in the sink with cold water **Be sure to change the water at least every 30 minutes!!** The cold water method will take approximately 30 min per pound of turkey (1).

Buffet Rules: If you are serving a cold food, try placing the container over another container with ice. Hot foods can be kept hot longer by placing them over a pan of hot water. However, regardless of your serving method, if a food has been out at room temperature for more than 2 hours, toss it! Likewise, if a food has been handled by a lot of people, play it safe and throw it out (2).

Left-Overs: If you're re-heating left overs but sure they get hot enough. Re-heated foods should reach 165 degrees Fahrenheit for at least 15 sec within 2 hours (2).

Quick Reference:

Taking temperatures while you cook is one of the best ways to protect you, your family and friends from the dangers of uninvited guests (bacteria and food poisoning).

From your friends at UNSA, have a Happy and Safe Thanksgiving!



References:
1- American Dietetic Association. Safe Turkey Thawing Tips. http://www.eatright.org/Public/content.aspx?id=4294967586&terms=turkey+thawing
2- USDA Department of Food Safety and Inspection Guidelines 2011

Photo Credit: Rachel Spauldilng via www.sxc.hu

Friday, November 18, 2011

Working Nutrition into Your Workout

Is there an end to the benefits of exercise and physical activity? Weight maintenance, bone strength, improved lipid levels, reduced stress, improved mood, decreased risk of cancer and cardiovascular disease, reduced risk of type 2 diabetes and hypertension (1), getting to wear that awesome pair of jeans (you know the ones) - the list goes on and on! But if exercise is the King of good health, then nutrition is the Queen; and where would the King be without the Queen? The truth is, without good nutrition to support your workout you'll be missing out on important health benefits and could even be causing damage to your body. Fueling correctly before, during, and after exercise means you'll be able to get the most out of your workout. Taking in the right nutrients with a workout ensures that you'll be supplying your body the stuff it needs to repair and become stronger (2).

So here's a quick breakdown of the American Dietetic Association's recommendations for Pre, During, and Post Workout Nutrition.

Pre-Workout: You may not think of water as a nutrient, but it is- a very important one. Being even 1-2% low on the old H2O (AKA water) can sap your energy and put you at risk for dehydration. Be sure to start your fluid intake several hours before your workout in order to ensure you're fully-hydrated. When it comes to a pre-workout snack, think carbohydrates, low fat, and low fiber (that's to keep your tummy from getting upset) about 45min to 1 hour prior to workout. This does not mean you should go help yourself to a Krispy-Cream donut, choose high-quality carbs like a Banana, granola, or a low-sugar fruit smoothie. 

During Workout: Nutrient intake during workouts is especially important for endurance athletes or for anybody who is going to be working out for more than an hour. For every hour spent working out, you should consume between 30-60 grams of carbohydrates. It would be a good idea to spread your intake throughout the workout as opposed to scarfing down a turkey sandwich at mile 4 of your 8 mile run. If you are planning to work out more than an hour, eat a little of a high carb snack all along. Some good examples are dried fruits or broken up pieces of fig newtons. And don't forget to keep the fluids flowing during exercise to prevent dehydration!

Post Workout: A good post workout snack should contain a mix of carbs and protein. The carbs help prevent a post-workout energy crash and the protein helps rebuild and repair your muscles. Low fat chocolate milk or a slice of whole wheat bread with peanut butter make great post workout snacks. And, as always, make sure to keep hydrating.

In order to reap all the benefits of an exercise program you have to fuel your body right. Too often people fail to provide their bodies with the nutrients they need when increasing their physical activity. Even if your goal is to decrease your weight, your body simply can't function correctly without the proper nutrients; so take the time to work good nutrition back into your workouts!


References:
1- Penedo FJ, Dahn JR. Exercise and well-being: a review of mental and physical health benefits associated with physical activity. Curr Opin Psychiatry. 2005 Mar;18(2):189-93.
2- Rodriguez NR, DiMarco ND, Langley S. Position of the American Dietetic Association, Dietitians of Canada, and the American College of Sports Medicine: Nutrition and Athletic Performance. J Am Diet Assoc. 2009;109:509-527.

Photo Credit: Timothy Takemoto via Flickr Creative Commons

Saturday, November 12, 2011

Fixated on Fiber

Perhaps you've heard of fiber. You've probably seen labels on food products "with added fiber". You may even know that fiber is good for you, but what is fiber, really, and what does it do?

There are basically two different types of Fiber: Soluble and Insoluble


Soluble Fiber: dissolves in water and forms a gel-like texture. This type of fiber is commonly found beans and peas, fruits, oats, and some vegetables (think carrots, squash). Soluble fiber is important in lowering cholesterol by slowing and preventing the absorption of fats, and is also important in lowering glucose (sugar) levels in the blood by slowing the absorption rate of glucose. Take home point: soluble fiber can help prevent Cardio Vascular Disease and Diabetes Mellitus Type 2 (1-3).

Insoluble Fiber: commonly found in whole grain foods and vegetables, this fiber does not dissolve in water but creates "bulk". Bulk may not sound important, but it's actually pretty amazing. It fills you up faster, keeps you from feeling hungry, and keeps your intestines in tip-top shape. Take home point: insoluble fiber can help with weight maintenance, keep things "running smoothly", and helps prevent diseases like hemorrhoids and colon cancer (1-3).

A diet rich in both types of fiber is important to keep your body healthy and reduce the development of chronic disease. Most Adults need approximately 14grams of fiber for every 1000 calories they eat, or around 25-30grams of fiber a day (2). There are lots of fiber added products on the market, most of which have had soluble fiber added. While these can be a good supplement to help you increase your intake, it's important to get a balance of both types of fiber in order to get the most benefits. So load up on whole grains, fruits, and leafy vegetables - and enjoy not only the delicious flavors but the added health perks too!


References:
1- Mayo Clinic Staff "Dietary Fiber: Essential for a Healthy Diet". The Mayo Clinic. Retrived Nov. 12, 2011 from http://www.mayoclinic.com/health/fiber/NU00033.
2- ADA "Position of the American Dietetic Association: Health Implications of Dietary Fiber" J Am Diet Assoc. 2008;108: 1716-1731.
3- Anderson JW, Baird P, et al "Health benefits of dietary fiber"Nutr Rev. 2009 Apr;67(4):188-205.


Photo Credit: Rachel Gilmore via www.sxc.hu

Friday, November 4, 2011

Know the Facts: Eating Disorders

Healthyvols welcomes guest blogger Renee Taylor-Sapp, Eating Disorder Coalition of Tennessee Knoxville Student Intern.


Since the 1930s the incidence of eating disorders has been steadily increasing every decade. Approximately 10 million American females and 1 million American males are struggling with an eating disorder and many more individuals go undiagnosed. Eating disorders are defined as a recurrent pattern of dysfunctional eating behaviors and habits associated with adverse mental, medical and social consequences. According to the American Psychological Association eating disorders are broken into three categories: anorexia nervosa, bulimia nervosa and binge eating disorder.


Anorexia Nervosa – characterized by extreme restriction of dietary intake due to an intense fear of gaining weight or becoming fat even though the individual falls around or below ~85% of their ideal body weight along with severe body image distortions.

Bulimia Nervosa – fluctuations through regular cycles of binge eating (at least twice per week) accompanied by feelings of loss of control followed by compensatory behaviors; compensatory behaviors could be purging (use of laxatives or vomiting) or non-purging (excessive exercise or calorie restriction).


Binge Eating Disorder – describes individuals who experience binge-eating cycles characterized by consumption of massive amounts of food with lack of control and uncomfortable fullness even in the lack of hunger; unlike Bulimia Nervosa individuals with binge eating disorder do not participate in compensatory behaviors.

Unfortunately, a larger percent of the population may suffer from many sub-clinical disordered eating patterns and body image distortions that go undiagnosed and untreated.

Over one-half of teenage girls and nearly one-third of teenage boys use unhealthy weight control behaviors such as skipping meals, fasting, smoking cigarettes, vomiting, and taking laxatives (Neumark-Sztainer, 2005).
42% of 1st-3rd grade girls want to be thinner (Collins, 1991).
81% of 10 year olds are afraid of being fat (Mellin et al., 1991).
46% of 9-11 year-olds are “sometimes” or “very often” on diets, and 82% of their families are “sometimes”or “very often” on diets (Gustafson-Larson & Terry, 1992).
91% of women recently surveyed on a college campus had attempted to control their weight through dieting, 22% dieted “often” or “always” (Kurth et al., 1995).

Disordered eating behaviors include unhealthy and inaccurate thoughts, feeling or habits focused around food and body image. These could include preoccupation with weight and diet including excessive or frequent weighing, frequent “dieting”, fasting or meal skipping, eliminating certain “bad” foods all together and the habitual use of diet aids and supplements. All of these behaviors over time can lead to increased risk of developing an eating disorder. It has been shown that 35% of “normal dieters” will progress to “pathological dieters” and about a quarter of pathological dieters will progress into partial or full eating disorders. 

However there is hope for individuals struggling with all forms of eating disorders and disordered eating. With the help of a qualified interdisciplinary team consisting of a licensed mental health provider and a registered dietitian individuals can, with time, completely recover from an eating disorder.

The best way to start the healing process is to seek appropriate help – the sooner the better! Contact the Eating Disorder Coalition of Tennessee for more information about where and how to receive help: http://www.edct.net/

A great way to get more information about eating disorders is to attend the EDCT Event on NOV. 8th "Cracking the Hunger Code" with Author Anita Johnson, PhD. This is a totally Free Event at the University Center of UT!




References:
1) All statistics were taken from the National Eating Disorder Association website. http://www.nationaleatingdisorders.org/
2) American Psychological Association http://www.apa.org/helpcenter/eating.aspx
3) The Elisa Project http://www.theelisaproject.org/
4) The Academy for Eating Disorders http://www.aedweb.org//AM/Template.cfm?Section=Home

Photo Credit: Katherine Evans via www.sxc.hu

Friday, October 21, 2011

The Profusion of Probiotics

Go to your refrigerator and take a peak inside. How many products do you see there with "Probiotic" or "Prebiotics" stamped on the packaging? The probiotic craze started with yogurt and then quickly spread to include almost every kind of dairy product, juices, and some kinds of snack foods. Perhaps you've heard something about probiotics like "good for digestion" or "improves immunity", but what do you really know about this added ingredient? Let's take a closer look at exactly what probiotics are and what they do.

Probiotics- are live, viable microorganisms (typically belonging to the Genus Lactobacillus) that are added to foods in an attempt to establish colonies of these organisms in your intestines. The purpose of these colonies are to improve your health by increasing digestion and absorption of nutrients as well as improving immunity by "crowding out" bad microorganism and preventing them from establishing harmful colonies that might cause illness [1].

Prebiotics- are carbohydrates that cannot be digested by humans but can be digested by the microorganisms in our intestines. These carbohydrates act as food for the microorganisms and promote their colonization and growth [2].

Symbiotics- refers to a mixture of probiotics and prebiotics or, in other words, the addition of the microorganisms along with some food to help get them started [2].

So we know what all these biotics are and are suppose to do; the question now is do they actually do what is claimed? There is some evidence that indicates probiotics do improve the function of the intestinal tract when it comes to decreasing diarrhea. The evidence in the areas of cancer prevention and increased immunity, however, is more equivocal (that means wishy-washy or not strong in either direction) and many organizations, including the American Dietetic Association, feel that more research is needed before the routine use of probiotics and prebiotics can be recommend for everyone [1,3,4].

If you are interested in starting a probiotics regime, please speak with your doctor first in order to rule out any personal health issues that may be impacted. In order to see the benefits of a probiotic regimen the Mayo Clinic suggests that "a daily dose of about 10 billion colony-forming units is needed" [4].


Resources:

1- DeVerse M., Schrezenmier J. Probiotics, prebiotics, and symbiotics. Adv Biochem Eng Biotechnol. 2008;111:1-66.
2- Zeratsky S. Are probiotics and prebiotics important for health? The Mayo Clinic, Retrieved on Oct. 20, 2011 from http://www.mayoclinic.com/health/probiotics/AN00389.
3- American Dietetic Association. Probiotics and digestion. The American Dietetic Association Hot Topics. April 2009.
4- Probiotics: Bacteria That Offer Health Benefits. The Mayo Clinic, Retrieved on Oct. 20, 2011 from http://www.mayoclinic.org/news2009-mchi/5340.html.

Photo Credit:  Binnorie Artwork via Flickr Creative Commons

Friday, October 14, 2011

What's there to Detox about?

Lose Weight Fast!
Increase Energy!
Improve your Immunity!
Rid your body of all the toxins that are keeping it from functioning properly!

Ah yes, the battle cry of detox diets everywhere-programs that claim to return the body to pristine operating condition by riding it of all those nasty chemicals built up by our diets and the environment.

That all sounds well and good except for one little hangup- the human body is made up of several of the most complex and efficient detoxification machines known to man: the liver, kidneys, intestines, and lungs [1]. Our bodies are constantly working to filter out and rid the tissues of toxins, and it does an incredible job. The body does such a good job, in fact, that there is absolutely no scientific evidence to support the notion that we need to take the additional measures promoted by detox or "cleanse" diets. So if there isn't any evidence that detox diets are doing any good, are they doing any harm?

Detox diets typically include a period of fasting followed by a strict diet of fruits and veggies or specialty shakes and/or vitamins, supplements, and proprietary herbal remedies. Participants of this type of diet often claim to feel more energetic and healthier, but this is a placebo effect likely contributed by feeling happy because they think are doing something good for their bodies [2]. In truth, this type of extreme dieting can lead to several very serious health issues [2,3]:
  • Dehydration
  • Nausea
  • Headache
  • Dizziness
  • Diarrhea
  • increase risk of slowing metabolism
  • increase the risk of some individuals developing eating disorders
Even with all these potential side effects, there is NO scientific evidence that detox diets actually remove any additional toxins from the body [1,2,3]. Anyone who plans to follow a detox diet should only do so under the supervision of a physician.

If you want your body to function at its optimum level, the best diet is one rich in fruits and vegetables, whole grains, lean meats, and low fat dairy [3].



References:

1- Carter D. Coming clean: Detox diets are back. Courier-Journal.com. http://www.courier-journal.com/article/20090821/FEATURES0401/908210322/Coming+clean++Detox+diets+are+back. Retrieved on October 11, 2011.
2- Illiades C. The truth about detox diets. Everyday Health.com. http://www.everydayhealth.com/digestive-health/the-truth-about-detox-diets.aspx. Retrieved on October 11, 2011.
3- Zeratsky K. Do detox diets offer any health benefits. The Mayo Clinic. http://www.mayoclinic.com/health/detox-diets/AN01334. Retrived on October 11, 2011.

Photo Credit: Dora Mitsonia via www.sxc.hu

Friday, October 7, 2011

Fishy Supplements: are they worth the clams?

Dietary supplements are big business, and I mean the Billions of Dollars kind of big business. Of the 38% of the US population who engages in some form of complementary medicine, the majority of those individuals are using natural products such as dietary and herbal supplements [1]. And the Number One dietary supplement used in the USA is Fish Oil [1].

Fish oil is taken by individuals to treat a myriad of problems including Depression, Cardio Vascular Disease, Attention Deficit Disorders, joint problems like Rheumatoid Arthritis, and decreased metabolism. So does fish oil really help with any of these problems, or are people just wasting their money?

Let's start with Cardio Vascular Disease (CVD) and related risk factors like inflammation, blood pressure, triglyceride and HDL levels. Several studies have shown that that fish oil supplements do in fact decrease blood triglyceride levels while increasing HDL levels (aka "good cholesterol") [2]. However, while the affects are statistically significant, they were still very small. When it comes to inflammation in the circulatory system, the active component in fish oil, Omega 3 fatty acids, have been shown to reduce inflammation which can protect against CVD [3].
Take Home Message: Fish oil supplements have some protective effects against CVD.

Okay, so what about joint health and Rheumatoid Arthritis? A large study in 2008 found that taking fish oil supplements significantly decreased NSAID (pain medication) use when compared to a placebo in patients with Rheumatoid Arthritis [4]. As it turns out, clinical trials have shown that the anti-inflammatory effects of those Omega 3s extends to joint inflammation [5].
Take Home Message: Individuals with joint pain and Rheumatoid Arthritis may benefit from fish oil supplementation.

A new study just published this year found that omega 3 Fatty acids, like those found in fish oil, decreased anxiety in otherwise healthy medical students [3]. While no improvements where seen in depression symtoms, this trial provides evidence that individuals may see improvements in overall anxiety levels by taking fish oil supplements. However, I would recommend waiting on more research before starting on a fish oil supplement regimen to reduce anxiety.
Take Home Message: Fish oil supplements may reduce anxiety in otherwise healthy individuals, but I'm not signing up just yet.

When it comes to Attention Deficit Disorders, metabolism, and all other health claims, the evidence that fish oil has any effects is significantly lacking. While some studies show positive results, others show negative results, and almost all of the research trials are very small. In order to determine the true effects of fish oil supplements in any of these diseases and disorders much more research is needed.

Natural does NOT mean Safe!
There are plenty of natural things in this world that will kill you like sharks, volcanos, and poison mushrooms; so just because a product is said to be natural it does not mean that it is automatically safe. Before taking fish oil supplements it is important to understand that they are considered dietary supplements and are therefore not required to be proven safe or effective. The FDA is only responsible for removing such supplements fromt the market if they have been proven unsafe. Fish oil supplements are at risk of containing contaminates such as Mercury, Lead, Arsenic, and Pesticides [6].

Warning: Fish oil supplements should not be used in conjunction with blood thinners or by individuals with bleeding disorders.


References:

1- NCCAM. The use of complementary and alternative medicine in the United States. US Department of Health and Human Services; Dec. 2008. http://nccam.nih.gov/news/camstats/2007/camuse.pdf
2- Hill AM, et al. Combining fish-oil supplements with regular aerobic exercise improves body composition and cardiovascular disease risk factors. Am J Clin Nutr. 2007; 85: 1267-1274.
3-Kiecolt-Glaser JK, et al. Omega-3 supplementation lowers inflammation and anxiety in medical students: A randomized controlled trial. Brain Behav Immun. 2011.
4- Galarraga B, et al. Cod liver oil (n-3 fatty acids) as an non-steroidal anti-inflammatory drug sparing agent in rheumatoid arthritis. Rheumatol. 2008; 47:665-669.
5- NCCAM. Rheumatoid Arthritis and CAM.
http://blackboard.utk.edu/webapps/portal/frameset.jsp?tab_tab_group_id=_2_1&url=%2Fwebapps%2Fblackboard%2Fexecute%2Flauncher%3Ftype%3DCourse%26id%3D_757123_1%26url%3D
6- United States Governement Accountability Office. 2010. www.goa.gov

Photo Credit: ArtsieAspie via Flicker Creative Commons

Friday, September 30, 2011

Gluten: Give in or Give up?


There's a little protein hiding in grains like wheat and barely called gluten, and recently it's been getting a bad rap. Magazines, websites, and books like "The G-Free Diet" by Elizabeth Hasselbeck recommend giving up gluten to treat everything from Autism to weight gain. In response to the Gluten-free rage, the food industry has stepped up to provide the public with an increasingly varied supply of gluten free alternative to pastas, breads, cereals, soups, and many other items that typically contain wheat. So what about you? Is it still okay to dig into your Grandma's gluten-packed homemade lasagna, or should you give it up and go gluten-free?

There are two sides the the gluten argument: gluten and Celiac Disease, or gluten and Autism, weight gain, Attention Disorders, and similar claims. Let's start with Celiac Disease.

Celiac Disease is an autoimmune disorder. When people with this disorder ingest products containing gluten their bodies respond by attacking the gluten, damaging their small intestine in the process [1,2]. Celiac Disease can result in malabsorption of many necessary nutrients like Iron and calcium, abdominal pain, and weakness in addition to internal damage [2]. A related diagnosis is Gluten Intolerance, which is very similar to Celiac Disease but does not result in any physical damage to the small intestine [2]. The symptoms of these two conditions can vary from person to person and some individuals may not show any symptoms at all [1]. Therefore, if you think that you or someone you know may have Celiac Disease it is important to see a Doctor for diagnosis.
Take Home Message: Individuals with diagnosed Celiac Disease should definitely switch to a gluten-free diet in order to prevent damage. Individuals with Gluten Intolerance may want to avoid gluten products in order to prevent symptoms.

What about the claims that going gluten-free can treat Autism and attention disorders, increase energy, and aide in weight loss? There is no credible, published research demonstrating a connection between gluten and any of these disorders. The official position of the American Dietetic Association is that there is no evidence to suggest that removing gluten from the diet will improve health in any way unless you have been diagnosed with Celiac Disease or Gluten Intolerance [2]. In fact, many gluten-free products are highly refined and may therefore be higher in calories than typical products and may contain less nutrients and fiber.
Take Home Message: Don't needlessly restrict your diet!

Too often Celebrities and Magazines are quick to make health claims that are not based on solid scientific evidence. Always be sure to check their sources! Just because they say it has been "proven" or is "scientifically shown" does not mean that their sources are unbiased or stand up to international scientific standards.

References:

1-Zimmer KP. Nutrition and Celiac Disease. Curr Probi Pediatr Adolesc Health Care. 2011 Oct;41(9):244-7.
2- Zelman KM. Gluten-Free Diet Review. http://www.webmd.com/diet/features/g-free-diet. 2011
3- Celiac Disease Health Center. http://www.webmd.com/digestive-disorders/celiac-disease/celiac-disease-topic-overview. 2011

Photo Credit: nkzs via www.sxc.hu

Thursday, September 22, 2011

Would Mary Poppins use Splenda?


Part II of a II part series "SWEET!"-a look at artificial sweeteners.

For hundreds of years Sugar enjoyed an unrivaled rule as the king of sweeteners. Yes, plain old Sucrose (table sugar) was the choice for afternoon tea, holiday sugar cookies, and to "help make the medicine go down" if you found yourself in a 1960s Disney film. Since the late 70's, though, there have been emerging rivals to the throne. Nonnutritive sweeteners have been met with both applause and fear. While many hail artificial sweeteners as the dieters best friend, others shout warnings about cancer, cognitive damage, and birth-defects. So who is right? It turns both groups are wrong.

As previously discussed in SWEET! part I, regular artificial sweetener use can contribute to weight gain. In addition, a review of the literature found that there were no peer-reviewed, controlled, published scientific studies that showed disease or defect caused by any of the 5 FDA approved nonnutritive artificial sweeteners when consumed within recommended limits [1].
So here is a brief overview of the FDA approved sweeteners and their ADIs (acceptable dietary intake) [1,2]:

Sucralose- Commonly known as Splenda, this sweetener is made from a modification process of Sucrose and is 600 times sweeter than regular table sugar. Sucralose is very stable under heat which makes it easy to be used in baking. ADI: 5mg/kg per day

Aspartame- Commonly known as Nutra-sweet or Equal. This sweetener is 200 times sweeter than table sugar and is after-taste free. However, Aspartame breaks down under heat and is therefore not recommended for cooking or baking. Also- it is important to note that this sweetener breaks down into two amino acids (phenylalanine, aspartic acid) and should NOT be consumed by individuals with PKU. ADI: 50mg/kg per day

Saccharin- one of the oldest artificial sweeteners, Saccharin has been around since the early 1900s and is commonly known as Sweet-and-low. Saccharin is 300 times sweeter than table sugar, but has a bitter after-taste. ADI: 15mg/kg per day

Acesulfame-K- Commonly known as Sunette and is 200 times sweeter than sugar. This sweetener is stable under heat and does not break down during cooking or baking. ADI: 15mg/kg per day

Neotame- This sweetener is one of the sweetest, a whopping 8000 times sweeter than table sugar. Neotame is not broken down by the body, but it does contain phenylalanine and therefore should not be consumed by individuals with PKU. This sweetener is relatively new and is mostly used in drinks and packaged food items although it is heat stable and can be used for cooking and baking. ADI: 18mg/kg per day.

There are other sweeteners out there called Alcohol sugars, and plenty of different types of natural sugars, but we'll save those for another day and another blog.

Please remember, while FDA artificial sweeteners are safe alternatives to sugar, moderation is key. Too much of anything can be a bad thing!

References:

[1] Herman JR. Dietary Sugars and Alternative Sweeteners. Oklahoma Cooperative Extension Service. T-3175. http://pods.dasnr.okstate.edu/docushare/dsweb/Get/Document-2397/T-3157web.pdf

[2] FDA CEDI Database

Photo credit: Inya via www.sxc.hu


Thursday, September 15, 2011

The Sour Side of Sweet


Part I of II part series "SWEET!" - a look at artificial sweetners

In America's current calorie conscious environment, it's easy to reach for a diet soda or that packet of Splenda for your tea and think that you're getting a sweet deal. Calorie-free artificial sweeteners have been gaining speed in the last decade and have worked their way into a huge variety of food sources from sodas to muffins. And while this increase in prevalence may seem like a no-lose situation, sweet taste without those naughty calories, emerging scientific evidence suggest that you may be "gaining" more than you think.

In 2010 the Yale Journal of Biology and Medicine published a review of the contribution of artificial sweeteners to obesity and weight gain titled Gain weight by "going diet" Artificial sweeteners and the neurobiology of sugar cravings. Surprisingly, multiple large-scale research studies have shown that increased consumption of artificial sweeteners is directly correlated to higher body weights and increased BMIs. Trial groups have included many different ages, races, backgrounds, men and women. Across the board- the individuals who consumed artificial sweeteners on a regular basis gain Significantly More Weight than individuals who consumed artificial sweeteners on a limited basis [1].

So why?? Further investigation into how the body responds to artificial sweeteners provides insight. The taste and consumption of sugar increases our bodies' appetite. Harken back to the days of scarce food and limited resources. If our ancestors had stumbled upon a calorie dense food source (like fruit), they would have needed to consume as much as possible. Unfortunately, despite our improved circumstances, our bodies still respond with the same biological response. And while science has been able to rid the sweets of their calories, it hasn't been able to defeat our biological urges. Artificial Sweeteners elicit the same (some times even greater) appetite increasing response as sugar [2].

So while you may not be gaining weight from the sweetener its self - that sweetener is secretly sending the message to your body to eat more at that meal as well as for the rest of the day.



References:

1 - Yang, Q. Gain weight by "going diet" Artificial sweeteners and the neurobiology of sugar cravings. Yale J Biol Med. 2010; 83(2):101-108.

2- Mattes RD, Popkin BM. Nonnutritive sweetener consumption in humans: effects on appetite and food intake and their putative mechanisms. Am J Clin Nutr. 2009;89:1-14.

Photo Credit: Jade Gordon via www.sxc.hu


Friday, September 9, 2011

The Truth about Soy


Walk around your local Grocery and it's easy to see that Soy is making huge advancements in both food quality and product diversity. There are soy yogurts, flour, cheese, tofu, milk, beans, snack/workout bars and a multitude of meat replacements like Soy "chicken" nuggets or Soy Salisbury "Steaks". And why not? Soy is a great plant-based protein, packed with vitamins and minerals, fiber, phytochemicals, and provides essential fatty acids. But as the use and availability of soy products has increased, so has Soy based confusion about Breast Cancer, Heart Disease, and Memory. So let's take a moment to sort out some of the facts from the fiction.

Soy and Breast Cancer: One of the major groups of phytochemicals in Soy, Isoflavones, is structurally simliar to Estrogen [1]. This structurally similarity has sparked an explosion of research into the potential protective effects of a diet high in Soy against cancers like Breast Cancer. However, the results have been a mixed bag. Some studies have shown lower rates of Breast Cancer in populations of high Soy consumption, but these results vary depending on the types of Soy products and amounts consumed. Unfortunately, recent research has also implicated Soy in an increase in the Breast Cancer rate for Post Menopausal women [1]. Much more research is needed to pin-down the actual link between Soy and Breast Cancer.
Take Home Message- Both the protective effects and potential risks in Breast Cancer are associated with high levels of Soy product consumption. Stick with the American Dietetic Association recommendation of up to 25 grams of Soy a day for the benefit without potential risks!

Soy and Heart Disease: There has been some controversy in the past about Soy's ability to lower "Bad" Cholesterol (LDL) levels and therefore decrease the risk for Heart Disease. However, earlier this year a Meta-analysis of the Soy/Heart Disease research of the past decade found that in the majority of studies there was a significant decrease in LDL levels when participants consumed 15-30 grams of Soy daily [2].
Take Home Message- Get one of your daily Protein servings from Soy and lower your risk of Heart Disease!

Soy and Memory: There's been a lot of buzz in recent years about Soy causing Memory loss. However, a search of Pubmed returned study after study showing cognitive improvement and memory boost from diets rich in soy, especially in Post Menopausal women and Elderly Men.
Take Home Message- Soy might help you boost your ability to memorize all those Amino Acids and Biochemical Pathways!

One Last Note: Remember, it's better to get your nutrients from real foods; so focus on Soy foods like Tofu and avoid Soy supplements and pills.



References:

1- Nagata C. Factors to consider in the association between soy isoflavone intake and breast cancer risk. J Epidemiol 2010;20(2):83-89.
2- Anderson JW, Bush HM. Soy protein effects on serum lipoproteins: a quality assessment and meta-analysis of randomized, controlled studies. J Am Coll Nutr. 2011;30(2): 79-91

Photo Source: http://www.favoriterecipes.biz/paleorecipes.html