Apr 24, 2010 11:37 AM by NBC

Gene linked to obesity and Alzheimer's disease

A third of americans are estimated to carry a genetic variant that experts say makes them more vulnerable to obesity -and- Alzheimer's disease.

UCLA researchers studied brain scans of more than 200 elderly adults, and found reduced brain volume in carriers of the genetic variant.

The gene is also linked to greater fat mass.

However, researchers say switching to a low fat diet and exercising can help shed extra pounds and reduce the risk for dementia.



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