Bios Life® Cardio is well tolerated. There may be mild gastrointestinal discomfort, such as increased flatulence or loose stools, during the first month of initial use due to the increased uptake of dietary fiber. This GI disturbance usually disappears within the first thirty days. If the GI discomfort persists, reduce the number of servings of Bios Life® Cardio. If the GI discomfort further persists, stop taking the product and consult your physician. Taking this product without adequate liquid can result in complications.