Baby’s Jarro-Dophilus ® contains superior, scientifically documented strains. Clinical studies have documented the benefits of B. breve M-16V and B. longum BB536 (Morinaga) in infants and young children. FOS is a natural fiber which enhances the growth of beneficial probiotic bacteria. At time of manufacture, each gram (approximately 1/4 teaspoon) contains a minimum of 3 billion probiotic organisms in the following percentages and amounts: B. breve M-16V* 25% 750 Million B. lactis Bi-07 15% 450 Million B. longum BB536* 15% 450 Million B. bifidum Bb-02 15% 450 Million L. casei R0215 15% 450 Million L. rhamnosus Lr-32 15% 450 Million Total 3 Billion