Udo's Choice Adult's Blend Microbiotics provide an easy-to-consume daily blend of ‘friendly’ bacteria 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 Microbiotics Blend Contains: • 6 bacterial strains • 17 billion cells per capsule, including: Lactobacillus casei (HA-108): 35%, Lactobacillus rhamnosus (HA-111): 25%, Lactobacillus acidophilus (HA-122): 20%, Lactobacillus plantarum (HA-119): 10%, Bifidobacterium bifidum (HA-132): 5%, Bifidobacterium breve (HA-129): 5%. Suitable for vegetarians. Gluten free.