A member asked:

Is obesity genetic?

9 doctors weighed in across 6 answers

Seems partly genetic: Obesity, like most physical and mental traits in humans, seems to be partly genetic. That means obesity is also partly behavioral, familial, and environmental. The more tendency to become obese one has (regardless of where the tendency is coming from), the harder one will have to try to eat only as many calories as needed, and to exercise throughout one's lifetime.

Answered 6/11/2017

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Seems partly genetic: The answer is yes and no. The number of fat cells that a person inherits is genetic. Fat cells don't go away and a person's "adult set value" remains pretty much constant which is why fat cells grow back after liposuction. The environmental factor in obesity has to do with what a person eats. When the fat cells store more fat, we gain weight and when they store less fat, we lose weight.

Answered 12/24/2014

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Obesity is Genetic: Obesity clearly "runs in families". This is apparent by simply observing body appearances among parent and child. Now, we have found over 80 different genes that are preferentially found in obese individuals. The genes influence the metabolic rate (how many calories you burn), hunger hormone levels, fatty deposit tendencies, and many others. Identical twin studies also support a gene answer.

Answered 12/13/2014

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Dr. Alan Ali answered

Specializes in Psychiatry

Obesity: Genetic predisposition is confirmed, but becoming obese depends on many other controllable factors.

Answered 6/11/2017

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Dr. Mabria Loqman answered

Specializes in Bariatrics

Yes sometimes: some people are genetically predisposed to obesity. Other factors include the environment they grew up, dietary habbits and activity levels. also consider diseases like hypothyroidism and drug induced obesity due to prolonged use of corticosteroids.

Answered 7/27/2014

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Dr. Stuart Hickerson answered

Specializes in Family Medicine

Genetics: There is a genetic factor to obesity.

Answered 6/11/2017

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