[Dysart]

It’s exclusively genetic. My father is slim as he can be and also eats as he pleases and also never gains a pound.

[mysterio]

It’s exclusively genetic. My father is slim as he can be and also eats as he pleases and also never gains a pound.

The impulse to overeat might be genetic and metabolism is genetic to a point, but in the majority of cases, it's calories consumed vs. calories burned.

[discostu]

Weight is a lot like height. Genetics give you a disposition to overeat or not, a fast metabolism or slow, the possibility or impossibility of being tall. But just like a poor diet growing up will leave you at the low end of your genetic height, a poor diet and lack of exercise will leave you on the fat end of your genetic width.