Ms. Zhang, a reader of

in Hunan Province, asked: I found that there are various terms on the package of yoghurt nowadays, “probiotics”, “lactic acid bacteria”, “bifidobacteria” There are no less than 10 names. What are all kinds of bacteria? What’s the difference? What benefits does eating have to the body? Hu Changli, Ph.D., Key Laboratory of functional dairy products, Agricultural University of China; Second, probiotic yogurt, in addition to the above bacteria, also contains other lactic acid bacteria, such as Lactobacillus acidophilus and Bifidobacterium, and the price of this kind of yogurt is often on the high side.

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Lactobacillus bulgaricus and Streptococcus thermophilus are “transient” health bacteria, that is to say, most of these bacteria will not enter the large intestine and can not play the role of “adjusting intestinal flora”. Lactobacillus acidophilus, Bifidobacterium, some Lactobacillus casei strains, and other strains such as Lactobacillus rhamnosus, which are added to probiotic yoghurt, have been screened for a long time and proved to have a strong health care effect. For example, Bifidobacterium can produce lactic acid and acetic acid after fermentation in human intestine, which can promote the absorption of iron and vitamin D; Lactobacillus acidophilus can assist in protein digestion and produce lactic acid, antibiotics, and B vitamins. Therefore, in theory, this kind of yogurt may help regulate the balance of human intestinal microbes.

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but the benefits of probiotics yogurt on the body are not yet evaluated. And probiotics must reach enough number of live bacteria in order to play a sufficient role in health care. According to the research report, the number of probiotics should reach 106 or even more than 108 in order to have enough health care activity. Now, not all probiotic yoghurt will be marked with the number of probiotics, which consumers should pay special attention to when choosing. It should be noted that although ordinary yoghurt has no special probiotics, its nutritional value can not be ignored. If you just want to get protein, calcium and vitamins, promote digestion and absorption function, you can buy ordinary yogurt directly. ▲

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