Humans are frugivorous

It may not be obvious to you, but if you're human, you're a frugivore. What's a frugivore you ask? Its an animal who's primary food source is fruit. Before you say "that's crazy!" Know that the great ape family, the one that technically you are a part of, are all primary fruit eaters. Fruit is our best friend and our 'perfect food'. You can live a very healthy and long life by sustaining yourself primarily on fruit. Think I'm wrong? Try a nothing but fruit diet for 3 weeks, eat plenty of fruit(as in a lot) and see how you feel. Please feel free to ask questions and talk about this in the comments, I would love to know what you all think.