About 30 days, usually once a day, can improve the balance of intestinal flora, play a beneficial role in living microorganisms, inhibit harmful bacteria and promote beneficial bacteria. Generally, it is served with warm boiled water, and the eating time is to ingest probiotics in the living space after meals. Active probiotics can colonize the intestine, thus regulating the balance of different flora in the intestine. Probiotics can also directly affect the intestinal immune system and enhance the immune function of the intestine.