Thanks for finding this thread. I like quinoa and have had it in salads and a breakfast cereal in restaurants. When I made it at home, I got a bad stomach cramp (for lack of a better medical description) for about 45 minutes. I didn't get sick, the pain just went away. So of course I tried it again a few days later, with the same results Does this mean it needs to be rinsed better? I bought it in the bulk section of the health food store and so there was no label.