Could using an artificial sweetener lead to weight gain? from the Harvard Health Letter
Is switching from sugar to artificial sweeteners a good trade? Dr. David S. Ludwig answers that question in the December 2011 issue of the Harvard Health Letter, which features eight Q & As by Harvard faculty and members of the Health Letter’s editorial board.
Most people consume artificial sweeteners to help them lose weight, and short-term studies suggest that they may have that effect, notes Dr. Ludwig, professor of pediatrics at Harvard Medical School and researcher at Children’s Hospital Boston. But other research raises concerns that artificial sweeteners actually promote weight gain. How so? These sugar substitutes are extremely sweet, Ludwig explains, so they may desensitize people to sweetness. As a result, nutritious, filling foods that aren’t as sweet — such as fruits and vegetables — may lose their appeal. Calories that were subtracted from the diet in the sweetener-for-sugar swap may sneak back in, in the form of refined carbohydrates and unhealthy fats.
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