Effects of dietary glycemic index on brain regions related to reward and craving

Effects of dietary glycemic index on brain regions related to reward and craving in men

Conclusions: Compared with an isocaloric low-GI meal, a high-GI meal decreased plasma glucose, increased hunger, and selectively stimulated brain regions associated with reward and craving in the late postprandial period, which is a time with special significance to eating behavior at the next meal.

Moral of the story: if you want to stay lean, avoid refined carbohydrates.

Also, interestingly enough, this study appears to provide support for both the insulin and reward/addiction models of obesity.

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2 comments
Kindke says August 20, 2013

refined carbs are EVERYWHERE in society. easily 50% of the calories in your local supermarket is refined carbs.

Also, consider what would happen if EVERYONE stopped eating refined carbs. there would be a global food crisis as whole foods go into extinction.

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eah says August 22, 2013

Perhaps not exactly the same, but since I switched to a more ‘paleo’ diet a few years ago, I can definitely say I experience episodes featuring what I can only describe as strong cravings for carbohydrates. This happens now and then; sometimes I eat something like ice cream to satisfy it. But in any case it is hard to resist.

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