20. Amanda Seyfried
At one point in her career, the actress ate only raw food and followed the rule that no food can be cooked at more than 115 degrees Fahrenheit. In a 2010 interview, Seyfried told Esquire, “I’m on a raw-food diet … It’s intense. And sort of awful. Yesterday for lunch? Spinach. Just spinach. Spinach and some seeds.” Yum.