50 + Formula GI Regularity and Consistency Longevity Formula - Gluten Free Non-GMO A Dietary Supplement Vegetarian - Vegan Strain Verified Probiotics - Enzymes - Digestive Family Owned Since 1968 GMP Quality Assured It has been found that as we age the number of healthy organisms in the large intestine start to decline, upsetting this delicate balance, which influences both immune function and digestive health. This product utilizes bacterial strains known to colonize the human GI tract and features Bifidobacterium lactis HNO19. Clinical studies have demonstrated that HNO19 supports digestive regularity and promotes normal immune system function in healthy adults over age 50.