Where does this come from, and can I check it?

Bacterial cell counts rival the body own cell total to aid metabolism. The figure is taken from NIH, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a human body fact?

Yes. It sits on the Human Body shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Trillions of microbes live symbiotically on and in human bodies

Bacterial cell counts rival the body own cell total to aid metabolism

The human body hosts a vast ecosystem of bacteria, fungi, and viruses known as the microbiome. Microbes residing in the gut, skin, and mucosal surfaces aid digestion, produce key vitamins, prevent pathogen colonisation, and train immune responses.

Where this comes from

NIH

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Tags: microbiome, bacteria, health

Trillions of microbes live symbiotically on and in human bodies: the short answers

Where does this come from, and can I check it?: Bacterial cell counts rival the body own cell total to aid metabolism. The figure is taken from NIH, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a human body fact?: Yes. It sits on the Human Body shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.