My brother and I were raised on the same food and activities and he's always battled his weight where as I've always been slender and eat whatever I want. I'm 6'1" and usually hover around 170 lbs. He's 5'11" and flucuates between 190-250 lbs. So I doubt our parents are to blame for my brother's weight.
Some people are just built differently.
Some people are just built differently.
Everything I needed to know about life I learned on Dagobah.