Probiotics are live bacteria and yeasts that are good for your health, especially your digestive system. We usually think of bacteria as something that causes diseases. But your body is full of bacteria, both good and bad. Probiotics are often called "good" or "helpful" bacteria because they help keep your gut healthy. Probiotics are naturally found in your body. You can also find them in some foods and supplements.
Probiotics are believed to protect us in two ways. The first is the role that they play in our digestive tract. Poor food choices, emotional stress, lack of sleep, antibiotic overuse, other drugs, and environmental influences can all shift the balance in favor of the bad bacteria.
When the digestive tract is healthy, it filters out and eliminates things that can damage it, such as harmful bacteria, toxins, chemicals, and other waste products. On the flip side, it takes in the things that our body needs (nutrients from food and water) and absorbs and helps deliver them to the cells where they are needed.The idea is not to kill off all of the bad bacteria. Our body does have a need for the bad ones and the good ones. The problem is when the balance is shifted to have more bad than good. An imbalance has been associated with diarrhea, urinary tract infections, muscle pain, and fatigue.
The other way that probiotics help is the impact that they have on our immune system. Some believe that this role is the most important. Our immune system is our protection against germs. When it doesn't function properly, we can suffer from allergic reactions, autoimmune disorders (for example, ulcerative colitis, Crohn's disease, and rheumatoid arthritis), and infections (for example, infectious diarrhea, Helicobacter pylori, skin infections, and vaginal infections). By maintaining the correct balance from birth, the hope would be to prevent these ailments.
The FDA regulates probiotics like foods, not like medications. Unlike drug companies, makers of probiotic supplements don’t have to show their products are safe or that they work. Ask your doctor for more information about the correct product and dose for you.