There is a movie called "First Do No Harm" it kinda chronicles the Ketogenic Diet and one families struggles with epilepsy and finding a better way than what was being offered. A great thing about the movie is that several people in it were people who had been on the diet and saw great improvement in their lives. It's at least worth a watch. Hope it helps.
You can not change your past, but you can ruin a perfectly good present by worrying about the future.