Udo's Choice Advanced Adult Probiotic capsules contain 9 unique bacterial strains and contain a higher percentage and concentration of the bifido strain of bacteria to specifically help those aged 65 and upwards to maintain a healthy digestive and immune system. The high concentration of probiotics contained in each capsule may help the gut to digest proteins, fats and carbohydrates more efficiently. This formula also provides essential support to the immune system. Suitable for vegetarians.