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I'm in training for the Breast Cancer 3 day, 60-mile walk. I'll be walking 20 miles a day. Which type of energy bar would be best for me? — Terri, MD

Anne Coulston



Energy bars are meant to be portable calories that are easy to eat and provide ready energy for exercising muscles. Despite the number of brands, there are really only two types of energy bars: one that's rich in carbohydrate and low in fat, and one that balances carbohydrates equally with fat. Today’s bars have varying amounts of protein, from five to 30 grams.

Before your race, sample a few different bars before or after a workout. Choose the one that tastes best to you, is easily digested and helps you to sustain your energy. To avoid a mess during hot weather, avoid bars with chocolate or yogurt coatings.

About Anne Coulston

Ann M. Coulston, M.S.,R.D., graduated from Cornell University with a master's degree in nutritional science and is a former research dietitian at Stanford University Medical Center, and a past president of both the American Dietetic Association (1998-1999) and the California Dietetic Association. Ann specializes in clinical research on carbohydrate and lipid metabolism and collaborates with medical scientists in research on diabetes and cardiovascular disease.

She has been recognized for excellence in the practice of research and clinical nutrition by the American Dietetic Association Foundation, and is the recipient of the American Dietetic Association's Medallion award for leadership. The California Dietetic Association has awarded her the Distinguished Service and Outstanding Member awards.

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