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Weight-loss diets often discourage eating fruit for the first few weeks because raising blood sugar levels can lead to more fat storage. However, eating fruit instead of processed, starchy snacks can help you shed a little weight or protect against weight gain over time, according to a joint study by UK and U.S. researchers, published in The BMJ (formerly British Medical Journal). After analyzing research that tracked more than 124,000 American men and women, the study concluded that an apple or pear a day, or a half-cup of blueberries, could help maintain weight or even lead to a loss of one or two pounds. Over time, this can have significant health benefits by helping prevent age-related weight gain.