I have been on a fat free diet for over a year and a half. Since then I have had very few reactions, and all have been minor. Traveling is very difficult, eating in restaurants is tough, but my health is much better. Any one try this? Before my diet I had times when I could eat some fat, but I never knew when I would hit the crucial limit. Once my bowels were exposed to fat they would stay sensitive for days. So additional fat would tip the balance. It's radical, but has worked for me.