Rule Out A Food Allergy
Prolonged or excessive intestinal gas might be a sign of an underlying food allergy or intolerance. Many people have sensitivities to foods containing lactose, fructose, eggs, wheat, and gluten. Try an elimination diet for two weeks by eliminating these foods from the diet. Keep a food journal to track progress. After two weeks, slowly reintroduce these foods back into the diet in the amount of one food per week. Write down detailed notes about which foods cause intestinal gas and which are safe.