Is Food Addiction Making Us Fat?

Brain research reveals that fats and sugars may increasingly be driving people toward obesity

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Would a rat risk dying just to satisfy its desire for chocolate?

A few years ago I found out. In my laboratory, we gave rats unlimited access to standard chow as well as to a mini cafeteria full of appetizing, high-calorie foods: sausage, cheesecake, chocolate. The rats decreased their intake of the healthy but bland items and switched to eating the cafeteria food almost exclusively. They gained weight. They became obese.

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