There are 10 times the number of microbial cells in the human gut than human cells in the whole human body
There are roughly 100 trillion microbes in the human gut
The weight of microbes in the human gut is approximately 2 kilograms.
Human gut microflora is often called “the forgotten organ”
Other than human gut, Microbial cells also exist in the skin, oral, and vaginal sites
More than 800 species of bacteria colonize oral mucous, 1,300 species are found in the gingival crevice, and nearly 1,000 species comprise dental plaque
Humans are born without bacteria, and acquire them in the first few years of life
Not all bacteria are bad, our human body harbors trillions of good bacteria which play a pivotal role in keeping us healthy
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