Our bodies are home to a lot of microorganisms, especially body parts like the mouth, skin, and digestive tract. These parts are exposed to external factors. These microorganisms are called commensal microbes and are largely interdependent with the human population. The most number of commensal organisms can be found in our gastrointestinal tract. Our GI tract spans more than 350 sq. meters which makes it the second biggest surface area in the human body. The GI tract is rich in flora. More than 500 species of bacteria live here. Some of these bacteria are good for us, protecting us from bad bacteria and helping in the process of digestion. There were studies done on germ-free animals which have concluded that microbial colonization is important to the human body. But sometimes these microbes can create a pathogenic relationship with the human host which have the tendency to lead to a fatal disease.
There are microbial metabolites that could mutate and become carcinogens. They lead to cancer especially when humans are greatly exposed to them. That is why it is important for us to understand how colonizing microbes affect us and how we can use them to combat the negative effects of harmful commensal microbes. Probiotics are known to have a good effect on our health, especially when taking in the right amounts. In short, probiotics are what feeds the good bacteria. They are good to include in our diet because probiotics will help the good bacteria to multiply and survive the rigors brought about by the digestion process.Probiotics help our body to fight the bacteria enzymes that allow for the growth of carcinogens in our colon. Aside from this, probiotics also improve our immune system. Probiotics are better than therapy because they cost lower and they do not lead to antibiotic resistance which can decrease their effectiveness over time.
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