Are There More Bacterial Cells Than Human Cells?

💡 The Answer

• A 2016 study revealed that the average human body is composed of approximately 56 percent bacteria.
• This means there are actually more bacterial cells living inside you than there are human cells.
• Although they are numerous, bacteria are so light that they make up less than 1 percent of your weight.
• Earlier scientific estimates incorrectly suggested that the ratio of bacteria to human cells was 9 to 1.