People think that bacteria are harmful. Which bacteria are good for human body?

Speaking of bacteria, most people think that bacteria must be dirty and harmful to human body. Once infected with these bacteria, it may cause certain harm to people's lives, but in fact, not all bacteria are bad bacteria, and some bacteria are beneficial to people if they enter our bodies. So what are these bacteria?

1. yeast

I believe everyone has heard of the term yeast. In the process of making some steamed bread or dough, we often add some yeast. Yeast actually has many benefits to our human body, which can promote the peristalsis of our gastrointestinal tract. People with bad stomach can effectively improve the occurrence of gastrointestinal discomfort if they eat some yeast in moderation.

2. Lactic acid bacteria

There are nearly 200 kinds of lactic acid bacteria, most of which are the flora that our human body needs. Lactic acid bacteria are most commonly used in milk. If we carefully observe the yogurt or milk drinks we buy, the words lactic acid bacteria are often marked on the outer packaging, and some businesses will regard lactic acid bacteria as a marketing gimmick. The promoted lactic acid bacteria can protect the health of our gastrointestinal tract, but in fact, this marketing method of merchants is not unreasonable. Lactic acid bacteria do contribute to gastrointestinal peristalsis. However, some dairy products we drink contain very few lactic acid bacteria, and in the end, few dairy products can really play a role, so don't be confused by the marketing gimmicks of merchants.

3. Pediococcus beer

In fact, the beer we drink is also made by fermentation. In the fermentation, the beer will also contain Pediococcus beer. This ingredient is also a probiotic. Usually when drinking beer, this probiotic can also protect our gastrointestinal tract after entering our body. But after you see this, don't think you can drink beer without restraint. Drinking too much beer often does more harm than good.