Udo's Choice Adult 50+ Blend Microbiotics provide an easy-to-consume daily blend of ‘friendly’ bacteria (probiotic), specifically selected for over 50’s, to support the immune system functionality & encourage proper digestion. Microbiotics are the beneficial lacto & bifido bacteria that occur throughout the digestive tract & are essential in replenishing healthy gut flora, which helps to reduce gas, bloating & constipation. Udo’s Choice Adult 50+ Blend Contains: 7 bacterial strains designed for optimum bowel health 34 billion cells per capsule, including: Lactobacillus casei (HA-108): 30%, Lactobacillus rhamnosus (HA-111): 20%, Lactobacillus acidophilus (HA-1220): 10%, Lactobacillus plantarum (HA-119): 10%, Bifidobacterium bifidum (HA-132): 10%, Bifidobacterium breve (HA-129): 10%, Bifidobacterium longum (HA-135): 10%. Suitable for vegetarians. Gluten free.