Probably the Uk's most potent probiotic, each gelatin-free capsule delivers 10 billion friendly bacteria.Provides Lactobacillus acidophilus La-5 and Bifidobacterium Bb 12 strains of bacteria. Beneficial Lactic Acid bacteria are required to maintain a favourable balance between the beneficial and the pathogenic bacteria for a healthy and regular digestive system. Recommended for people on antibiotics, those who want to ensure favourable gut flora balance, people travelling overseas, the elderly and those on sugar/yeast free diets. (The combined destrose and sucrose in these capsules is equivalent to 1/50th of a teaspoon - less than 1/2 calorie).