Did you know that certain strains of bacteria in your gut naturally decline as you age? Fortify Optima Age 50+ 90 Billion is formulated for adults ages 50 and older with Bifidobacteria strains. Fortify Optima Age 50+ Advanced Care designed to support a healthy gut microbiome colon health digestive balance and immune health with 15 probiotic strains and 90 billion live probiotic cultures per serving.* Contains the doctor-preferred probiotic strain for regularity.* †† (††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 8/13/23; August 2023.*) *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.