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“Personalized” Nutrition Plan Could Be Answer To Ineffective Dieting

December 21, 2015: 12:00 AM EST
Because metabolism differs from one person to the next, personalized nutrition, based on individual responses to foods, may be the best way to diet, an Israeli study finds. Researchers tracked blood sugar levels of 800 people who ate the same foods for a week. A key finding was that the glycemic index (GI) – used to track the effect of a food on blood sugar – is not a set value, but depends on the individual. Age and body mass index (BMI) affect blood glucose levels after meals. The researchers also found that different people show markedly different responses to the same food – in one woman’s case, “healthy” tomatoes – even though responses were the same from day to day. A “personalized” nutrition plan would eliminate tomatoes from that woman’s diet because of its effect on her blood sugar.
David Zeevi et al., "Personalized Nutrition by Prediction of Glycemic Responses. ", Cell, December 21, 2015, © Elsevier Inc.
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