As a fat person I can honestly say; I am fat because I eat a lot of food and I don't do any exercise. 
It's not my genes.
It's not my thyroid.
It's not god's plan.
It's not the illuminati. 

I eat like a mad cunt because I enjoy it. Bitch you aren't predisposed to being fucking fat you just ate 20k fucking calories today. 

Own it or change it, don't fucking LIE to yourself.