No one really associates bacteria with being good or beneficial, but it can be. Good bacteria, otherwise known as probiotics, are found in certain foods and dietary supplements. Probiotics are similar to the beneficial microorganisms naturally found in a person's gut.
Common Probiotics
The most common groups of good bacteria are lactobacillus (Lactobacillus acidophilus) and bifidobacterium (Bifidobacterium bifidus). These bacteria are commonly found in your gastrointestinal tract and in the vagina. A theory supporting the need for these good bacteria is that the cells in the digestive tract actually connect with the immune system.
Benefits of Probiotics
Certain illness and medications can alter the flora within the gut. In order to maintain balance in our body and keep it healthy, the good bacteria may need to be replenished. The most common reason to need more of these good bacteria is when a person is taking antibiotics. Not only do antibiotics kill the bad bacteria, they kill the good along with it. Probiotics are also recommended to offset certain gastrointestinal symptoms, such as bloating and diarrhea, associated with antibiotic use, inflammatory bowel disease and lactose intolerance. Other reasons people may want to consume additional good bacteria are for vaginal infections, the management of atopic dermatitis in children, periodontal disease, and good bacteria's potential anti-cancer properties.
Common Sources
Common food sources of these bacteria are certain milks, yogurts, kefir, miso, tempeh and other fermented foods. Look for yogurt that has active cultures. Additionally, probiotic dietary supplements can be found in tablet, capsule and freeze-dried preparations.
Safety
Along with a healthy diet, probiotics can be beneficial in maintaining a healthy lifestyle. Since good bacteria is naturally found in your digestive tract, probiotics are considered safe to consume when they come from food. When taking any dietary supplement consult your physician for potential side effects as the FDA does not regulate supplements to the same degree that it regulates medications.
Disclaimer
Taking probiotics should not replace medications. You should always consult your physician before taking any supplements.
