As you age, your body needs different support to function at its best. Fortify 50+ 50 Billion is formulated with more CFUs of Bifidobacteria, which naturally declines with age. Its a more potent daily probiotic supplement made just for adults ages 50+ with researched probiotic strains to support digestive, immune, and colon health.* (Compared to Fortify 30 Billion.) Each serving provides 50 billion live probiotic cultures plus prebiotics, a food source for good bacteria.* Fortify 50+ 50 Billion is Non-GMO Project Verified, Certified Gluten-Free, DNA-Authenticated, and contains the doctor-preferred probiotic strain for regularity.* Fortify probiotics dont require refrigeration so you can take them anywhere and everywhere. One capsule, multiple benefits thats the Fortify promise. (+Compared to Fortify 50+ 30 Billion.) (Based on an IQVIA ProVoice survey of Primary Care Physicians, HOWARU B. lactis HN019 is the Doctor preferred probiotic strain for Regularity as compared to other strains in leading Probiotic brands, 52-week sales MULO, ending 10/3/2021; November 2021.*)*This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.