Foods that have gone through a process of fermentation, in which natural bacteria convert carbohydrates into organic acids, gases, or alcohol. This process can enhance the nutritional value, taste, and shelf-life of the food.
Some examples of Fermented Foods:
YogurtKefir: similar to yogurt but made with kefir grains, which are a symbiotic culture of bacteria and yeast.
Beer, wine, and other alcoholic beverages are also fermented products.