A diet high in calories and carbohydrates may improve survival and functionality for patients with advanced amyotrophic lateral sclerosis, according to a study that tested the diet against a standard calorie-replacement diet in a small group of patients. Researcher Dr. Anne-Marie Wills of Harvard Medical School said there are no nutritional guidelines for ALS, but it has been observed that ALS patients who are overweight tend to have better survival than those at normal weight.

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