This has been described as one of the most significant and important types of good bacteria that inhabits the human body. Bifidobacterium longum maintains a normal digestive tract, inhibits the growth of harmful bacteria, and also boosts the immune system. Other benefits of B. longum include diarrhoea prevention in antibiotic treated patients, cholesterol reduction, alleviation of lactose intolerance symptoms, immune stimulation, and cancer prevention. In addition to this research various studies have been conducted regarding the health effects of B. longum, and researchers have concluded from these studies that it  may minimize the effects of or prevent the following: constipation associated with weight loss, various types of allergies and inflammation associated with Crohn’s disease or colitis, or high levels of cholesterol.