So my doctor recommended this diet for me. I've done a ton of reading, research and gathering of recipes. My grain and sugar and processed food loving husband agreed to a 21 day trial for all of us. I am so excited that he's willing to try. He has intermittent tummy trouble and I was hoping that this would clear those issue up. We are easing into this, not actually started but having primal dinners and his breakfast/lunches are more primal than they have been before. We've had two dinners and both mornings his digestion is off. (euphemism for diarrhea). I don't want this to fail before we really get started, but he's becoming skeptical very quickly. What should I do?