"When I hear health professionals suggesting that you shouldn't worry about the balance of calories in versus calories out, but rather eat clean and follow your hunger instincts, well, I really just want to pinch their heads off. That's like a millionaire suggesting that instead of worrying about that's in your bank account, just listen to your shopping instincts and buy high-quality goods . . . weight loss is not magic. To a great extent, it's accounting."