NPR Choice page - weight of microbes in average adult

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Revised Estimates for the Number of Human and Bacteria Cells in the Body weight of microbes in average adult


What is the total mass of bacteria in the body? From the total colon The Number of Human Cells in a “Standard” Adult Male. Many literature.

Because of their small size, however, microorganisms make up only about 1 to 3 percent of the body's mass (in a pound adult, that's 2 to 6.

If you've ever read anything about the colonies of bacteria that live They found that for a man between 20 and 30 years old, with a weight of about 70 kg the average adult, he said, that equals a total of trillion microbes.