" It’s as simple as this: if you have excess body fat, it’s directly reflective of the amount of insulin you produce from your diet combined with your familial genetic predisposition to store fat. In plain-speak, if you eat like crap and have bad (genetic) luck, you’ll get fat and sick and you’ll probably die early. "

― Mark Sisson , The Primal Blueprint: Reprogram Your Genes for Effortless Weight Loss, Vibrant Health, and Boundless Energy