Increase calories: The more calories you eat the more you will gain. Some people are naturally thin in young adulthood, and can eat amazing amounts of calories without gaining. If you are this type, you will have a difficult time gaining weight until you are in your 40's.
Answered 4/13/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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