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    Nutrition

Heritability of obesity: Do these genes make me look fat?

How much of the variation in weight in this whole population is explained by variation in genes? This is where ‘heritability' comes from.

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Obesity is a common disease caused by multiple factors, with heredity playing a strong causal role. Obese people are often branded overeaters who don't exercise. But many obesity experts argue that being heavily overweight is a common genetic... more »Obesity is a common disease caused by multiple factors, with heredity playing a strong causal role. Obese people are often branded overeaters who don't exercise. But many obesity experts argue that being heavily overweight is a common genetic disorder. It is clear that obesity often tracks in families. Having obese relatives increases one's risk for obesity. Linkage studies have been applied in mapping genes responsible for single gene disorders. 03-19-2015 7:07am

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