Many people take probiotics( gummies, yogurt, kefir etc.) to aid in their digestion and gut health. To my knowledge, bacteria has to reach the large intestine to have any benefit. Before reaching the large intestine, bacteria has to go through the stomach. There is HCL secreted there which would give the stomach contents a pH from 1.5 to3.5.
How does the bacteria survive that low of a pH?
In: Biology
My assumption is that because they number in the billions that some of them just survive thru sheer numbers
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