What Are Probiotics?

Probiotics are microorganisms that provide health benefits when consumed in adequate amounts. These can be live bacteria or yeasts that are found in fermented foods such as yogurt, kimchi, sauerkraut, kefir, and kombucha. They can also come in the form of dietary supplements. The most common types of probiotics include lactobacillus and bifidobacterium, which are naturally found in the human gut.