Friday, June 19, 2015

What are FODMAP's?


 
FODMAPs: Mapping your Way to Gut Comfort
Submitted by: Emily Seferovich
Edited by: Marcia Bristow MS RDN CD

Navigating the shelves of a grocery store can be risky business for someone with Irritable Bowel Syndrome (IBS) or Crohn’s Disease. Mooany foods plunge these individuals into a flurry of symptoms ranging from painful bloating and cramping, to uncomfortable gas and irregular bowel movements1,2. Luckily, there may be a solution, and it goes by the odd name of FODMAPs.
FODMAP stands for Fermentable Oligosaccharides, Disaccharides, Monosaccharides, and Pylols; although spelling it is certainly a mouthful, these are all complex terms for a simple concept. The FODMAP eating plan limits foods that contain the five sugars that cause the common symptoms associated with IBS and Crohn’s. The first of these sugars is fructose, which can be found in foods like fruit, honey, corn syrup, and high fructose corn syrup. The second is lactose, a sugar in unprocessed dairy foods such as milk. fructans are found in wheat, garlic, onion, and inulin. galactans are found in legumes such as beans, lentils, and soybeans. The last group is the polyol group, present in stone fruits such as avocado, apricots, cherries, nectarines, peaches, and plums. While many of these tasty foods promote health, limiting their consumption can help reduce uncomfortable symptoms that accompany IBS and Crohn’s Disease3.
Foods that fit well in the FODMAPs eating plan include oatmeal (a good source of fiber), eggs, meats, tofu, lactose-free, or dairy-free milk substitutes (such as almond, soy, or coconut milks). Gluten-free grains (such as corn, quinoa, spelt, rice, etc.…), fruits such as bananas, blueberries, or cantaloupe, and vegetables such as bell peppers, carrots, eggplant and green beans also fit well into a FODMAPs eating plan. Experts from Stanford University encourage FODMAPers to adhere to food lists to help them stay on track (you can find a link to one below).
One way to determine which of the FODMAP sugars is triggering your symptoms is to try the diet for several weeks (six weeks is typical). Afterwards, add each of the high-FODMAP groups back into your diet one-by-one to identify which of them are resulting in discomfort. During the trial weeks, you can try a few delicious FODMAP-approved snacks, such as corn tortilla and cheddar cheese quesadillas, fruit smoothies blended with strawberries and lactose-free milk, or oatmeal topped with almonds, banana, and blueberry! If you're willing to take the challenge, FODMAPs could become an effective way to help diminish the symptoms of Irritable bowel syndrome or Crohn’s Disease.
For a link to a FODMAP food list, visit: http://ow.ly/MLHQ8



Work Cited:
Original Article:
Scarlata, Kate RDN. The FODMAPs Approach — Minimize Consumption of Fermentable Carbs to Manage Functional Gut Disorder Symptoms. http://www.todaysdietitian.com/newarchives/072710p30.shtml. Accessed May 10, 2015.
1.       Mayo Clinic Staff. Crohn’s disease - Mayo Clinic. http://www.mayoclinic.org/diseases-conditions/crohns-disease/basics/definition/CON-20032061. Accessed May 10, 2015.
2.       Mayo Clinic Staff. Irritable bowel syndrome - Mayo Clinic. http://www.mayoclinic.org/diseases-conditions/irritable-bowel-syndrome/basics/definition/CON-20024578. Accessed May 10, 2015.
3.       lowfodmapdiet.pdf. https://stanfordhealthcare.org/content/dam/SHC/for-patients-component/programs-services/clinical-nutrition-services/docs/pdf-lowfodmapdiet.pdf. Accessed May 10, 2015.

Should you Choose a Milk Alternative?


Milk Mooves Over For Competitors – But Should It?  
Submitted by:  James Lesley
Edited by:  Marcia Bristow MS RDN CD

The average American drinks a whopping 34% less cow’s milk today than they did in 1970.1 In 2013, alternative milk producers saw a booming 15% increase in sales.1 Alternative milks are made from plants, such as soy, almond, or rice. They are growing in popularity and are quickly becoming a more regular part of some American’s diet.

This begs the question: Are these other milks are worth all of the attention they receive? Both types have benefits and drawbacks. So the next time you pop in to your local grocery store to buy milk, it will be important to consider these factors when making your decision.

Cow’s milk is a great source of naturally occurring nutrients, such as calcium, potassium, phosphorus, and high quality protein. All are essential for a wide range of health benefits, such as maintaining muscle and bone function as well as regulating blood pressure. Some research suggests that the calcium found naturally in cow’s milk might be absorbed better by our bones to help them stay strong.2 Although some milk products can be high in saturated fat, low fat and fat free options are available and can be part of a balanced diet.

Milks made from soy, almond, rice, or coconuts do not contain lactose, a sugar found naturally in cow’s milk. These beverages are good choices for individuals who are lactose intolerant and cannot digest it properly. Plant-based milks also contain naturally occurring vitamins and minerals, but can vary depending on the source. For example, rice milk only has 18 milligrams (mg) of potassium compared to almond milk, which has 190mg. An 8oz glass of fat free cow’s milk will have 382mg. In addition, plant-based milks can potentially cost more and contain added sweeteners to help them taste better. All of these factors will depend on the brand and type of milk that you buy.

If you are thinking about making the switch to a plant-based milk, be sure to compare the nutrition labels of the available options. Look for overall nutrient content before you decide which one is right for your diet and lifestyle.



References
1. Tufts University Friedman School of Nutrition Science & Policy. Should you join the switch from dairy milk? Tufts Univ Health Nutr Lett. 2013;31(7):4-5.
2. Heaney RP, Dowell MS, Rafferty K, Bierman J. Bioavailability of the calcium in fortified soy imitation milk, with some observations on method. Am J Clin Nutr. 2000;71(5):1166-1169.


Food for Stroke Prevention


DASHing our way to Stroke Prevention
Submitted by  Emily Seferovich
Edited by: Marcia Bristow MS RDN CD

When it comes to stroke prevention, the secret may lie with the Dietary Approaches to Stop Hypertension. DASH is an eating pattern that emphasizes fresh fruits and vegetables, leaner proteins, nuts/seeds, low/non-fat dairy products, and whole grains. The underlying secret to DASH’s stroke-preventing abilities relies upon three nutrients that reduce blood pressure: magnesium, calcium, and potassium1,2,3.

Magnificent Magnesium
Magnesium is an extremely important nutrient that is responsible for many of the chemical reactions that occur in the body, in addition to controlling blood pressure. It is most commonly found in dark leafy greens such as kale, spinach, and Swiss chard. Each of these veggies can help supply the body with the magnesium it needs, and for very few calories to boot! Nuts/seeds, soybeans, avocados, and dark chocolate are additional delicious sources of magnesium. To eat according to the DASH principles, consume 4-5 servings of vegetables a day and 6-8 servings of whole grains per day. By doing this, you can meet your body’s needs for magnesium4.

Charismatic Calcium
Calcium is another essential nutrient that plays a key role in blood pressure maintenance5. It’s easy to come by if you eat dairy products, dark leafy greens, figs, fortified breads & cereals, fish, and soybeans. Increasing calcium intake has even been shown to offset the effect of salt in the diet, a known culprit in elevated blood pressure that increases our risk for stroke6. It’s important note that the body can’t absorb Calcium without Vitamin D, so try to consume 2-3 servings of calcium and vitamin D-rich dairy products per day to help your body absorb the calcium it needs to reduce your risk for stroke!

Powerful Potassium
Studies suggest that potassium lowers blood pressure by making our arteries more flexible while allowing the body to relieve itself of excess sodium7. Potassium is found in potatoes, squash, mushrooms, dark leafy greens, beans, soybeans, and non/low-fat dairy products. Bananas are another rich source for potassium and can help you meet the 4-5 daily servings of fruit recommended by DASH. Nuts/seeds are another source of potassium – DASH recommends that we eat 4-5 servings of nuts/seeds throughout the week (since nuts are a very calorie dense food, remember a serving of this group is equal to 1/4 cup)8.

No equation or formula will completely eliminate your risk for stroke. However, when combined with a healthy and active lifestyle, the D.A.S.H. diet can certainly aid in our quest for stroke prevention!

1.    Liebman B. A strike against stroke: how to keep your brain in working order. - Free Online Library. http://www.thefreelibrary.com/A+strike+against+stroke%3A+how+to+keep+your+brain+in+working+order.-a0307414239. Accessed April 26, 2015. *
2.    No Author Listed. In Brief: Your Guide To Lowering Your Blood Pressure With DASH - NHLBI, NIH. http://www.nhlbi.nih.gov/health/resources/heart/hbp-dash-in-brief-html. Accessed April 6, 2015.
3.    Bellows L, Moore R. Diet and Hypertension. http://www.ext.colostate.edu/pubs/foodnut/09318.html. Accessed April 6, 2015.
4.    Houston M, Harper K. Potassium, magnesium, and calcium: their role in both the cause and treatment of hypertension. - PubMed - NCBI. http://www.ncbi.nlm.nih.gov/pubmed/18607145. Accessed April 6, 2015.
5.    No Author Listed. Magnesium — Health Professional Fact Sheet. http://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/#h3. Accessed April 6, 2015.
6.    No Author Listed. A Guide to Calcium-Rich Foods | National Osteoporosis Foundation. http://nof.org/articles/886. Accessed April 6, 2015.
7.    Resnick L. The role of dietary calcium in hypertension: a hierarchical overview. - PubMed - NCBI. http://www.ncbi.nlm.nih.gov/pubmed/10075395. Accessed April 6, 2015.
8.    Ward, MS, RD E. Potassium Food Sources, Benefits, Deficiencies, and More. http://www.webmd.com/food-recipes/potassium-sources-and-benefits. Accessed April 12, 2015.
9.    No Author Listed. Potassium in diet: MedlinePlus Medical Encyclopedia. http://www.nlm.nih.gov/medlineplus/ency/article/002413.htm. Accessed April 6, 2015.
* Original Article




New Knowledge for Making Produce Decisions



More Bang for Your Buck! A Walk down the Produce Aisle
Submitted by: Madeleine Russell
Edited by: Marcia Bristow MS RDN CD

Come ‘n get your greens! Baby spinach, kale, arugula, spring mix… The large selection of leafy greens in stores makes it easier than ever to get a generous dose of vitamins and minerals. But not every container of spinach, for example, is the same as the next.  There are many factors that influence nutrient content. Knowing their impact can help you choose foods wisely!
 While growing, greens use sunlight to produce vitamins. But the process doesn’t stop at harvest! Grocery store lighting can boost levels of vitamins C, E, K, and B9 (folate) in leafy greens. One research study found that after nine days, spinach stored under light in the grocery store had a higher concentration of these vitamins than spinach stored in the dark. But it isn’t the same for all nutrients. Vitamin A content decreases under light, so it is best to choose orange and red veggies that are exposed to less light in the store (ex. bell peppers a layer below the surface).        
The age of a plant at harvest also determines nutrient content. The younger a plant, the higher its vitamin content will be. Take for example, large kale leaves and baby kale. The smaller leaves grow closer to the top of the plant and receive more sun. So while all kale will be rich in vitamins at harvest, the younger leaves contain more.  
 How can you make sure you’re getting the best bang for your buck? Choose younger greens over the older when you have the option, like a package of “baby” greens instead of a large head of lettuce. Pick containers of greens exposed to the most light. A little insight can help you get the best bang for your buck!  
References

1. Farnham MW, Lester GE, Hassell R. Collard, mustard and turnip greens: Effects of genotypes and leaf position on concentrations of ascorbic acid, folate, B-carotene, lutein and phylloquinone. J Food Compos Anal. 2012;27:1-7. 

2. Lester GE. Veggie smart: how to preserve vitamins. Nutrition Action Healthletter. October 2012:10-11.

3. Lester GE, Makus DJ. Relationship between fresh-packaged spinach leaves exposed to continuous light or dark and bioactive contents: Effects of cultivar, leaf size, and storage duration. J Agric Food Chem. 2010;58:2980-2987.

4. Zhan L, Hu J, Ai Z, Pang L, Li Y, Zhu M. Light exposure during storage preserving soluble sugar and L-ascorbic acid content of minimally processed romaine lettuce. Food Chem. 2013;136(1):273-278.


Is Gluten Really the Root of All Evil?



Is Gluten Really the Root of All-Evil?
Submitted by: Kristen Golan
Edited by: Marcia Bristow MS RDN CD


Let’s be honest, everybody has experienced abdominal discomfort at some point in time. And today, gluten is being blamed for everything from unintentional weight gain to arthritis and depression; ushering in a new wave of individuals labeling themselves as gluten sensitive. Nearly 30% of Americans are buying into the gluten-free diet craze. “Gluten-free” does not mean “healthy” and experts are not even sure of what gluten sensitivity is. So, why are so many people labeling themselves as gluten sensitive and avoiding gluten-containing foods? The following will help get rid of some of the gluten confusion.
Gluten is a protein found in wheat, barely, and rye that individuals with celiac disease are unable to digest. Even trace amounts of gluten can trigger a severe autoimmune response. Some other symptoms include gas, diarrhea, bloating, stomach pain, and mouth ulcers. However, if you experience these symptoms, you cannot readily blame gluten. According to a leading gastroenterologist at the Mayo Clinic in Minnesota, the symptoms may be caused by wheat sensitivity/wheat intolerance (a reaction to another component of the wheat plant, not gluten), or it may be something else entirely.
Before jumping on the gluten-free diet bandwagon, it is best to be informed if this dietary approach will serve your health and wellbeing. If you are concerned about having celiac disease or gluten sensitivity, contact your physician to be tested. Only then can you be sure that a gluten-free diet is best for you. Consumers should take note that highly processed foods with added sugar and fat tend to contain gluten, as well. It may be a better idea to eat more whole foods, such as whole grains, fruits, and vegetables instead of gluten-free processed foods. Also, there isn’t evidence that links gluten to weight gain, headaches, and other stomach issues. Dieting is trendy, but why cut out your favorite and healthy wheat, barley, and rye foods from your diet when you don’t have to?


References
1. Liebman B. Really? Don't believe everything you hear. Nutrition Action Health Letter Center for Science in the Public Interest. 2014;3-7.
2. Levy J, Bernstein L, Silber N. Celiac disease: An immune dysregulation syndrome. Curr Probl Pediatr Adolesc Health Care. 2014;44:324-327.
5. Nash DT, Slutzky AR. Gluten sensitivity: New epidemic or new myth? Every major change in our diet carries with it the possibility of unforeseen risks. Am J Cardiol. 2014;114:1621-1622.






What's up with chia seeds?



Beyond the Chia Pet – Chia in Your Diet
Submitted by: Kathleen Van Wyck
Edited by:  Marcia Bristow MS RDN CD

The word “chia” is often in reference to the novelty planters that are accompanied by a catchy jingle.  Unbeknownst to many, the green “fur” that grows is a result of small, edible chia seed, which also contain nutrients that may be beneficial to health. These seeds are a product of the plant Salvia hispanica L., a member of the mint family. It is recorded that individuals in Central American cultures have reaped the benefits of chia seeds since before the time of Christopher Columbus. Hundreds of years later, we are still incorporating chia seeds into our diet as part of a healthful lifestyle.
To modify recipes, mindful eaters and chefs alike are finding new ways to sneak this tiny seed into a variety of foods. Chia seeds can be sprinkled on salads or incorporated into smoothies and baked goods. Simple puddings made from chia seeds are a sweet and creamy twist to the norm. Adding chia seeds to muffins or granola will increase your intake of fiber and provide a little boost of protein. Finally, chia seeds can be sprouted (just like in your chia pet!) for a delicious micro-green to be added to salads, sandwiches, or smoothies.
Chia seeds are a great source of omega-3 fatty acids, fiber, protein, and antioxidants. Research shows that including omega-3 fatty acids in the diet may reduce the risk of cardiovascular disease, and improve risks factors such as elevated fat levels in the blood. The complete benefits of this tiny seed are still being researched. Of four human trials conducted, none of them have proven a link between chia seeds and disease prevention. Therefore, further research is being done in regards to the use of chia seeds as a dietary supplement.
Although the specific benefits of chia are still being researched, they still contain important nutrients that are part of a healthful diet. In addition to omega-3s and antioxidants, just one tablespoon of seeds can give you 19% of your recommended daily fiber. Adding chia seeds to your meals can be a small way to add a delicious and wholesome kick to your diet. Continued research will determine their particular role in disease prevention and a healthful lifestyle - stay tuned! 
Sources:
Lonergan C. Why everyone should try sprouting chia seeds. Mind Body Green Web site. http://www.mindbodygreen.com/0-12404/why-everyone-should-try-sprouting-chia-seeds.html. Published January 26, 2014. Accessed February 2, 2015.
Rosenburg I. Should you jump on the chia seeds bandwagon? Tufts University. Health & Nutrition Letter. 2013;31(1):6

Gluten Free, Lactose Free, Colon Cleanses-THINK TWICE


Gluten Free, Lactose Free, Colon Cleanses-THINK TWICE
Submitted by: Tenley Burlingame
Edited by:  Marcia Bristow MS RDN CD


It’s about time we clear up confusion about the gastrointestinal (GI) tract. Many of us have heard and read about various ways to keep our gut happy and healthy. The most commonly seen trends associated with gut health include: a gluten-free diet, colon cleansing, and a lactose-free diet. The food we ingest is directly related to how our GI tract functions. Therefore, in order to feel our best, we need to eat our best!
Within the past few years, gluten-free diets have become more popular and gluten-free alternatives are commonly offered at restaurants and supermarkets. To date, there have been no proven benefits to a gluten-free diet for those who do not have celiac disease.1 Celiac disease is a condition that requires an avoidance of gluten in foods in order to maintain intestinal health and avoid symptoms. Those who maintaining gluten free diet without celiac disease should be weary, as many gluten-free alternatives utilize excess sugar to make up for taste. Unless prescribed by your health care provider, gluten-free diets will not improve gut health.
Colon cleansing is another trendy approach to improve GI health. There is no evidence that cleansing is helpful in any way, and it may even be dangerous.2 Our bodies are designed to naturally cleanse themselves through the function of the liver and kidneys. Unnecessary colon cleansing can put you at risk for GI damage and for infections.2 Furthermore, it can lead to dehydration. It is advised to stay away from colon cleansing and let your kidneys and liver do their thing!
Lactose intolerance is a common diagnosis. Lactose is the naturally occurring sugar in milk and is found in numerous dairy products. As we age, our bodies adapt to our diet, establishing bacteria in the colon to digest lactose.1 If lactose is already a part of your diet, there is no reason to eliminate it. Unless you show symptoms and are diagnosed by a MD, continue to eat lactose-containing foods without worry!
Our society is bombarded by diet trends and fads, many of which are unsubstantiated. Gluten-free diets, colon cleansing, and lactose-free diets are among them. Make sure to consult an MD or RD before considering a new diet. Drastic changes to a diet for no reason can be dangerous if too restrictive. Our bodies work best when we include a well-balanced diet. Healthy habits can be formed to promote health such as trying new foods you are unfamiliar with. Focus on variety rather than limitation!


Sources:
 1. Gut Myths? Tufts Nutr Action Health Lett. 2013;(January/February):3-7.
2. Horne S. Colon Cleansing. J Herb Pharmacother. 2006;6(2):93-100. doi:10.1080/J157v06n02_08.


Fermented Foods




Digestive Benefits of Fermented Foods
Submitted by:  Kathleen Van De Weert 
Edited by:  Marcia Bristow MS RDN CD


Although it may seem like a recent trend, people have been fermenting foods for thousands of years. First discovered as a preservation technique, fermentation has been used to transform foods for new flavors and to increase health benefits. Yogurt, sauerkraut, and beer are a few well-known fermented foods. Those that are gaining popularity are kefir, kimchi, and tempeh made from milk, cabbage, and soy, respectively. The process of fermentation involves the transformation of sugar, or carbohydrate, into acid, gas, or alcohol by adding yeast or bacteria. This reaction usually takes place in the absence of oxygen, so the yeast or bacteria readily feed on the sugars and begin the fermentation process.
The utilization of carbohydrates by yeast and bacteria is a form of “pre-digestion”, which increases the digestibility of certain foods. Because the yeast and bacteria do the work of breaking down complex carbohydrates, our digestive systems don’t have to. For example, individuals who are lactose-intolerant are able to eat yogurt or cheddar cheese because the process of fermentation breaks down the lactose in the milk.
Not only does it increase digestibility, but fermented foods also introduce “good bacteria” into the digestive system, which aid in digestion and improve overall health and immunity. Having the proper balance of digestive bacteria helps the body better absorb certain vitamins and minerals. In addition, evidence suggests that a healthy gut reduces inflammation, improves bowel health and immunity, and may slow or reverse the symptoms of diseases such as Irritable Bowel Syndrome or Inflammatory Bowel Disease.
How can you incorporate fermented foods into your lifestyle? There are store-bought options such as tempeh, yogurt, kefir, and kombucha. Certain labeling will indicate whether or not a food is fermented. Look for “live food” or “contains live cultures” on the label of many fermented products. For foods like sauerkraut, the label should indicate “raw” or possibly “starter culture”. If vinegar is on the ingredient list, it is likely not truly fermented. Try some fermented foods, and your gut will thank you!
Sources:
Parvez S, Malik KA, Ah Kang S. Probiotics and their fermented food products are beneficial for health. Journal of Applied Microbiology. 2006;100(6):1171–1185.

Rosenburg I. Discover the digestive benefits of fermented foods. Tufts University. Health & Nutrition Letter. 2014;31(12):7.