I recently learned that I was gluten intolerant (blood test, then gastroscopy). I'm a new man since changing my diet a month ago. The thing is, gluten intolerance is supposedly associated with muscle cramps, which I had a lot in tennis and squash tournaments for the last 20 years. Always thought I got dehydrated faster because of very salty sweat or something, but it turns out that gluten intolerance induces malabsorption of nutrients (including electrolytes I believe), which in turn could explain the cramps. I just thought I'd share this here because most people don't suspect to have gluten intolerance (I had no clue until recently). Mild gastrointestinal symptoms can mistakenly be interpreted as some form of IBS. Don't be fooled by the impression that you digest wheat easily, that's what I thought until recently. If you have a history of not gaining weight easily and have a varying degree of gastrointestinal problems (especially in the absence of constipation), then you may have gluten intolerance. It is believed that 1% of the population is gluten intolerant, but only 10% of coeliacs are diagnosed. Hopefully my new diet will help with the cramps... Feel free to discuss, ask questions or add your own experience.