7. Jared Leto
In order to play Mark David Chapman, (John Lennon’s assassin) the normally fit Jared Leto packed on nearly 70 pounds. His method? Binging on chocolate ice cream mixed with olive oil and soy sauce. Yuck. If you want to gain weight, don’t follow this advice. It’s unhealthy method. Maybe Jared Leto liked it, but don’t take risks.