Go Nuts (and Beans)!


Fiber Rich FoodsIf you have diabetes, it may be wise to get the bulk of your fiber from low-glycemic foods high in fiber such as beans, lentils, nuts, pumpernickel bread, and oats. Although experts have long emphasized the importance of a diet rich in fiber and cereal grains for people with diabetes, recent research has shown that it's the low-glycemic foods high in fiber that help the most with blood sugar control.

Low-glycemic foods are those that have the least impact on blood glucose levels. Only a small percentage of foods have been tested, but you can find these lists in books on the glycemic index or on the official website, www.glycemicindex.com. The very best way to find out the glycemic impact of a food on your own metabolism, however, is to eat the food and test your blood sugar.

The six-month study followed over 200 patients with type 2 diabetes, who were were randomly assigned to either a low-glycemic, high-fiber diet or a conventional, high-fiber diet. Participants were provided a checklist of recommended foods. The low-glycemic diet checklist included:

• pumpernickel, quinoa, and flaxseed breads;
• rye pitas
• bulgur and flax cereal
• large-flake oatmeal
• oat bran
• wheat bran
• legumes (beans, peas, lentils, and nuts)
• parboiled rice
• apples
• pears
• oranges
• peaches
• cherries

Both diets were low in white flour and called for nonfat milk, yogurt, and cheese, and participants were instructed to eat five servings of vegetables and three servings of fruit each day. Both groups were strongly advised against nutrient-empty, high-carbohydrate foods such as pancakes, muffins, donuts, bagels, cookies, cakes, french fries, and potato chips.

Participants in the group eating conventional foods high in fiber saw a decrease of about 0.18% in their A1C levels. Members of the low-glycemic group, however, saw a drop averaging about 0.50%. In addition, HDL, or "good cholesterol" increased an average of 1.7 mg/dL in the low-glycemic group. HDL is associated with a lowered risk of heart disease.

Jenkins, David A., Cyril W. C. Kendall, Gail KcKeown-Eyssen et. al. 2008. Effect of a Low Glycemic Index or a High Cereal Fiber Diet on Type 2 Diabetes: A Randomized Trial. JAMA 300(23): 2742–2753.

Harvard Health Publications. Glycemic index and glycemic load for 100+ foods. (Accessed 3/230/09.)

Reviewed by Susan Weiner, RD, MS, CDE, CDN 4/11

Last Modified Date: April 02, 2013

All content on dLife.com is created and reviewed in compliance with our editorial policy.

More on this Topic

No items are associated with this tag

Sign up for FREE dLife Newsletters

dLife Membership is FREE! Get exclusive access, free recipes, newsletters, savings, and much more! FPO

You are subscribed!
You are subscribed!
You are subscribed!
68 Views 0 comments
by Lindsey Guerin
Because I wear my Dexcom on my arm, I’ve slowly adjusted to the fact that people will ask me about it. Sometimes it’s the rude and inquisitive “What’s that?” and sometimes it’s somewhat sincere curiosity “Is that a (insert random type of medical device that they assume)?” Sometimes it bothers me more than others depending on how they ask and how they respond once I’ve told them what it is. I have limits to how much myth-busting I want to do in everyday conversation and how much rudeness I can...