Looking for the ultimate gut-friendly bacteria to support your diet? Dr Stephen Langer\'s Ultimate 16 Strain Probiotic from Swanson Health is an advanced blend of 16 different species of acid-resistant bacterial strains that naturally colonize the digestive tract. Suitable for vegetarians, each capsule provides 3.2 billion CFU and 50mg of fructooligosaccharides. Looking for the ultimate gut-friendly bacteria to support your diet? Dr Stephen Langer\'s Ultimate 16 Strain Probiotic from Swanson Health is an advanced blend of 16 different species of acid-resistant bacterial strains that naturally colonize the digestive tract. Suitable for vegetarians, each capsule provides 3.2 billion CFU and 50mg of fructooligosaccharides. Gut friendly bacteria. Blend of 16 different bacterial strains. 3.2 billion CFU per capsules. 50mg of fructooligosaccharides. Suitable for vegetarians. 60 vegicaps per pack Probiotic Ultimate 16 Strain Probiotic contains three billion good bacteria and yeasts. Read more about the probiotic.