Eat lots of Millet. Cook it for a full hour. It's the one grain that doesn't produce gas: one of the easiest foods to digest, plus it's a superfood, full of every nutritional group. Bananas are great. Avoid anything acidic. Avoid caffeine. Avoid anything fried, deep fried, all oils that have been cooked at a high temperature. Avoid things like gravy, fatty meats. Avoid all nuts and seeds. Eat mainly fruits (be careful of too much bulk), vegetables, millet, some milk/cream/butter, tofu, lean fish (tuna, salmon, halibut): low-fat protein sources.