Why do some people never gain weight?
It's one of life's great injustices: Some people must carefully pay attention to everything they put in their mouths in order to maintain their weight, while others can eat doughnuts to their heart's content and achieve the same result. So what's the secret? How do some people manage to never gain weight?
There isn't one simple answer to this question, said Kathleen Melanson, a professor of nutrition and food sciences at the University of Rhode Island. "There's genetic, nutritional, and even behavioral factors involved," Melanson told ss iswib , "and the extent to which each of those factors come into play in any given individual is going to vary."
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