Healthy foods often consumed by fitness enthusiasts, especially fruits, vegetables, beans and whole grains, cause
gas. Constipation, laxatives and artificial food additives also cause
gas. The
pain occurs when the gas builds up and you're not able to let it out.
Trial and error with your diet may help you avoid gas cramps when you exercise. You may need to reduce the amount of food you consume prior to working out and eliminate foods that cause gas on your workout days.