Lactobacillus is effective in forming immunity and antibacterial substances, normalizing the composition of intestinal bacteria, and inhibiting the production of harmful bacteria. It inhibits the herpes virus and regulates immune function by producing antibacterial substances. It produces natural antibiotics in the small intestine to inhibit the growth of more than 20 types of harmful bacteria and enhances immunity. It promotes digestion by producing enzymes that help digestion of fats, proteins, and dairy products. It also produces vitamin B groups and vitamin K in the intestine.