Fermented foods undergo controlled microbial growth and fermentation, where microorganisms like yeast and bacteria transform food components into products like organic acids and gases. These foods, including yogurt, cheese, and pickles, have a longer shelf life due to reduced hospitability to pathogens, and are recommended to be included in daily diets. Beans and legumes are notable for their nutritional benefits and potential for fermentation, which can alleviate gastrointestinal discomfort associated with their starch content.