Scientists could block receptors to help obese people stop craving food.

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If you are really craving junk food, opt for Baked Lays, SunChips, Goldfish or oatmeal cookies.

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By day three I was craving solid food, and had started to get a little bit sick of the routine.

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Redux, a drug that reduced the craving for food and was sold by Wyeth (nyse: WYE - news - people ), was recalled in 1997 because it caused heart problems.

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She found a link between the brain's pleasure chemicals and a craving for this type of food.

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"These findings suggested that the craving for some kind of food is influenced by the tradition of food products and cultures, " the authors concluded.

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