Enjoying life on a rather restricted regimen

By great good fortune, there is nothing I cannot eat. There are a couple of things I'd prefer not to eat, but nothing, at least as far as I know, that would make me ill. As a result, I am fascinated by people who have to forego certain foods to stay well. I used to follow someone on the web who swore that something called the Specific Carbohydrate Diet™-- which, I learn, apparently requires initial caps and a TM symbol -- was the only thing that kept her alive. I never really investigated furthe...