Brain to blame for unhealthy cravings?

September 16, 2009 A new study finds that molecules of some kinds of fat ravel to the brain, which then tell the body that it doesn't need to stop eating just yet.

Researchers found when you eat something high in fat your brain gets "hit" with the fatty acids and you become resistant to insulin and leptin. Those are chemicals that tell the body to stop eating. Without that, you tend to overeat.

The study looked at lab animals

Authors of the study in the journal of clinical investigation say the type of fatty acid that seemed to do the most damage was found in beef and dairy.

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