“The most important thing I’ve learned about nutrition is you need to deserve your carbs … to deserve [hundreds of kcal of carbs] post-exercise, you need to be sub-10% body fat. And the quickest way to know if you have sub-10 body fat as a male is: Can I see the lineal alba [vertical separation] on your abs? In other words, can I see all ab rows? One ab row doesn’t count; you’ve got to see them all. In other words, you have to have penis skin on your abs.”