Probiotics are generally not recommended for normal people. The human intestinal tract has normal flora, such as lactobacilli, bifidobacteria, clostridium butyricum, etc. Among them, lactobacilli, bifidobacteria and other bacteria that are beneficial to the human body are called probiotics. Probiotics are suitable for people whose intestinal flora imbalance causes diarrhea, constipation, indigestion and other conditions. For normal people, probiotics are generally not recommended or needed. Normally, the human intestinal flora is maintained in a balanced state, blind use of probiotic preparations, on the contrary, will affect the balance of intestinal flora, excessive consumption may also cause intestinal flora disorders. It is recommended that patients with the need to use, under the guidance of a doctor to standardize the use, do not blindly use on their own, so as not to cause harm to the organism.