Many health conscious individuals today are becoming aware of the role of beneficial bacteria in the human body. Healthy bacteria in the gut act as a barrier against harmful bacteria by preventing their attachment to the intestinal lining. Disturbances in this delicate gastrointestinal microflora increase the susceptibility to pathogens and raise the risk of infection and disease. Probiotics help to re-establish and support a normal bacterial microflora in the intestines, particularly after antibiotic use.

Probiotics are dietary microbial mixtures that beneficially affect the host by improving intestinal microbial balance. Although large numbers of microbes normally inhabit the human intestine, certain strains of bacteria are believed to alleviate the symptoms of lactose intolerance, increase natural resistance to infectious diseases of the intestinal tract, improve digestion, improve lipid profile, improve mood,  and stimulate gastrointestinal immunity.

Probiotics can also be used to help prevent atopic dermatitis in children.