Everything You Need To Know About Microbiome An... [2025]

The human microbiome is a complex ecosystem of trillions of microorganisms—including bacteria, fungi, viruses, and archaea—that live on and inside your body. Often called the "second self" or a "supporting organ," it plays a vital role in digestion, immunity, and even mental health.

A balanced microbiome, or , is essential for daily bodily functions: The Human Microbiome and Its Impacts on Health - PMC - NIH Everything You Need to Know About Microbiome an...

: No two microbiomes are the same. Even identical twins share only about 20% of their gut microbes. The human microbiome is a complex ecosystem of

While you have distinct microbiomes in your mouth, skin, and lungs, the largest concentration is found in the (large intestine). Even identical twins share only about 20% of

: The microbial genome contains roughly 100 times more genes than the human genome, providing enzymes that allow us to process nutrients we otherwise couldn't. 2. Essential Roles in Health