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First of all, we should distinguish between Chu yogurt and lactic acid bacteria drinks. Those sour and sweet lactic acid bacteria drinks on the market actually don't contain probiotics at all, and the quality and quantity of probiotics are the standard to measure the quality of a yogurt.

At the same time, it can be seen from the ingredient list of lactic acid bacteria drinks that they are made of water, milk, sugar, citric acid or lactic acid. Generally speaking, when you look at the ingredient list, the ranking order of ingredient names is sorted according to their content from more to less. Yogurt is generally fermented naturally with fresh milk and various probiotics, and contains no preservatives.

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Secondly, when we face all kinds of yogurt on the market, we should have the mentality of simplifying the complex. No matter how the merchants give you psychological hints with all kinds of exquisite advertising copy, you should know several basic guidelines for purchasing yogurt, instead of following other people's suggestions. We don't choose expensive ones, we only sell good ones that suit us.

Then, first of all, choose "good bacteria" for yogurt. Good probiotics help to maintain the ecological balance of intestinal flora, form a biological barrier and inhibit harmful bacteria from invading the intestine. Streptococcus thermophilus and Lactobacillus bulgaricus are two commonly used probiotics in yogurt. Some yogurts also add Bifidobacterium, but because Bifidobacterium is anaerobic, it is usually added with the other two bacteria.

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After selecting probiotics, we should also "select the amount of bacteria", that is to say, a good yogurt depends on the number of probiotics it contains. We should know that the probiotics in a cup of yogurt are all produced and sold in the market, and then after consumers buy it home, the number of probiotics that can survive is a little less, and then after being digested by our bodies, the probiotics that can reach our stomachs are even less. Generally speaking, a cup of yogurt contains 50 to10 billion active bacteria.