2022-03-04


 
We have heard "Lactic acid bacteria" often, it is usually added in drink or supplement, but what is it? How does it work with our body? Let's talk about it deeply!

What is Lactic acid bacteria?

"Lactic acid bacteria" refers to bacteria that can metabolize sugars and produce more than 50% lactic acid. Bacteria with these functions, such as: Lactobacillus, Lactococcus, Leuconostoc, etc. Lactic acid bacteria are idiomatic terms are not formal terms of taxonomy.

The genus Bifidobacterium we often talk about produce lactic acid and acetic acid, but the production of lactic acid is relatively less. Thus, strictly speaking, it should not be called lactic acid bacteria. However, from the health care nutrition aspect, the genus Bifidobacterium is both safe and healthy for human consumption. Therefore, Bifidobacterium belongs to the category of Lactic Acid Bacteria.

The long history of fermented milk consumption indicates the Lactic Acid Bacteria strains are not only safe for human consumption (GRAS, generally regarded as safe) but also are beneficial to intestinal tract.

Why Probiotic (ex: lactic acid, acetic acid) is important?

The number of bacteria in the human gut is about 100 trillion, (more than 500 species). Human gut flora contains beneficial and harmful bacteria.

Metabolites produced by beneficial bacteria (Probiotic) such as lactic acid and acetic acid can inhibit the growth of harmful bacteria. It is very helpful for the maintenance of health and intestinal regulation.

Many factors can upset the balance of the gut flora, including the stress of busy life, unhealthy diet, changing of the environment, mental stress, aging, etc. It may increase harmful bacteria, causing the disintegration of intestinal bacterial balance, and then cause constipation, diarrhea.
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