I am saying being skinny does not make you healthier than the next guy who is a bit overweight. I think cravings play a part in this, you and me can disagree on what the body tells you but i feel people who focus on staying fit a lot of times reject a craving that would be the healthier decision.
There is also something to the saying "fat and happy", do not discount the positive reinforcement the body gives when you eat a large satisfying meal. Stress is what will kill you early, try and stay happy eat what you want and dont compare yourself to others. Life is easy, just listen