Proper digestion, without it, nutrients can't be assimilated fully, whether from food or supplements. And it's interesting to note that poor digestive tract function - not excess stomach acid - is often the cause of heartburn and acid indigestion. Keeping the digestive tract healthy helps defend against toxins and other undesirable substances to support overall digestive health. Digestion supplements can help. ProHealth offers an expanded line of digestive health products, including nature's best aids, enzymes, probiotics, fibers and intestinal cleansers.