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Summary: Fermented foods such as yogurt, kefir and sauerkraut have been part of the human diet throughout history and have gained attention in recent years due to their immense health and nutritional benefits. As a result, fermented foods are considered biofuel for the human microbiome which helps to boost the immune system. Fermented foods are those foods and beverages that are produced by employing specific microbial‐based fermentation aids such as yeasts and bacteria, particularly lactic acid bacteria (LAB). Through controlled enzymatic reactions, these microbial cultures transform food components as substrates into value‐added products promoting various healthy fermentative activities. These microbes in fermented foods also produce compounds that can inhibit food spoilage and pathogenic microorganisms, thereby extending the product shelf of fermented products. Probiotics are live microbiota with beneficial health properties, prevent gastrointestinal diseases and modulate the human microbiome. Thus, foods that are fermented by certain strains of probiotic bacteria that exhibit evidence of health benefits are referred to as probiotic fermented foods. This review describes fermented and functional foods, probiotics and their relationship to human health. In addition, we offer our perspective on the distinct differences between probiotic and fermented foods to promote awareness for consumers and key stakeholders regarding these highly functional and nutritionally fermented food products. [ABSTRACT FROM AUTHOR]