What are probiotics?Probiotics are live microorganisms that are intended to have health benefits when consumed or applied to the body. Probiotics are foods or supplements that contain live microorganisms intended to maintain or improve the "good" bacteria (normal microflora) in the gut. Lactobacillus and bifidobacterium species are the most commonly used probiotics.The most commonly used probiotic strains include the lactic acid bacteria (LAB), Gram-positive microbes that have been used for centuries in food production processes (yogurt, cheese, pickles).The most common fermented foods that naturally contain probiotics, or have probiotics added to them, include yogurt,Dahi, kefir, kombucha, sauerkraut, pickles, miso, tempeh,