I was watching some fruitarian video on youtube last year, I began to experiment by eating 5 serving of fruits. My wife notices my hair start to grow thicker. I was thinking it must be the fruits. I also notice I can swim a little faster when I'm charged with fruits in my system. What I love about it is the taste and the fact that you don't have to cook it. You can just eat it without any salt, oil, and spice. After my experiment, I began to change my eating habit. I always eat fruits first and vegan whole food items. I felt some starchy food still kinda necessary. Maybe I should conduct more experiement like whole fruits fasting for 5 days or so.