Yogurt starter culture, which mainly contains probiotics such as Lactobacillus and Bifidobacterium, has a number of benefits for human health. Firstly, it improves intestinal health, balances intestinal flora and inhibits the growth of harmful bacteria, thus strengthening immunity. Secondly, yoghurt fermenter helps digestion and absorption of nutrients in food, such as calcium, magnesium and other minerals, which is beneficial to bone health. In addition, it lowers blood cholesterol levels, reduces the risk of cardiovascular disease, and may help with weight loss and control. For people with lactose intolerance, the lactic acid bacteria in yoghurt fermenters can break down lactose and reduce discomfort. Therefore, moderate intake of yoghurt with active probiotics is an easy and effective dietary way to maintain good health.