The microorganisms in a particular environment (including the body or a part of the body).
We depend on a vast army of microbes to stay alive: a microbiome that protects us against germs, breaks down food to release energy, and produces vitamins.
The human microbiome is the aggregate of all microbiotas that reside on or within human tissues and biofluids along with the corresponding anatomical sites in which they reside, including the skin, mammary glands, placenta, seminal fluid, uterus, ovarian follicles, lung, saliva, oral mucosa, conjunctiva, biliary tract, and gastrointestinal tract. Types of human microbiota include bacteria, archaea, fungi, protists, and viruses.
Human bodies rely on the innumerable bacterial genes as the source of essential nutrients. Both metagenomic and epidemiological studies indicate vital roles for the human microbiome in preventing a wide range of diseases, from type 2 diabetes and obesity to inflammatory bowel disease, Parkinson's disease, and even mental health conditions like depression. A symbiotic relationship between the gut microbiota and different bacteria may influence an individual's immune response. Although in its infancy, microbiome-based treatment is also showing promise, most notably for treating drug-resistant C. difficile infection and in diabetes treatment.
Probiotics-
Probiotics are live microorganisms promoted with claims that they provide health benefits when consumed, generally by improving or restoring the gut flora.
Probiotics are a combination of live beneficial bacteria and/or yeasts that naturally live in your body. Bacteria is usually viewed in a negative light as something that makes you sick. However, you have two kinds of bacteria constantly in and on your body — good bacteria and bad bacteria. Probiotics are made up of good bacteria that helps keep your body healthy and working well. This good bacteria helps you in many ways, including fighting off bad bacteria when you have too much of it, helping you feel better.
Probiotics are part of a larger picture concerning bacteria and your body — your microbiome.
San Diego, USA