The Udo's Choice Super 8 GOLD Microbiotics are vegetarian capsules containing 8 strains of friendly bacteria to help counteract serious flora imbalance & promote good upper bowel health. Helping to replenish healthy gut flora & reduce painful gas, bloating & constipation, Super 8 Microbiotics contain 42 billion active bacteria per capsule & are beneficial for healthy digestion & immune function. Gluten free.