What is the gut microbiome?

A healthy, balanced gut microbiome is essential for overall well-being, influencing not only digestion but also brain health, mood, and even the risk of developing certain diseases.

Key Takeaways

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The microbiome is a collection of all microbes, such as bacteria, fungi, viruses, and their genes that naturally live in the human body. The gut microbiome encompasses organisms that live primarily in the colon, and protect against pathogens, aid immune system development, and enable food digestion. Body sites like the gut, skin, oral, and naval cavities have diverse microbiomes. 

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Overview

A person’s microbiome is formed in the first few years of life but can be altered by diet, medications, and environmental exposures. 

According to the National Institute of Environmental Health Sciences, the health of a person’s microbiome may lead to different health effects. It may also help determine one’s susceptibility to certain illnesses. Environmental exposures can also disrupt the microbiome in ways that can increase the likelihood of developing conditions like diabetes, obesity, neurological and cardiovascular diseases, allergies, and inflammatory bowel disease.