Fermented foods gain popularity due to gut health interest

Fermented foods, such as yogurt, kefir, sauerkraut, kimchi, miso, tempeh, and kombucha, are seeing renewed consumer interest driven by a growing focus on digestive wellness and gut microbiota diversity.

These foods are produced when bacteria or yeasts break down sugars in ingredients like milk, vegetables, soya, or tea, transforming them into acids, gases, or alcohol. This process preserves the food while altering its taste and texture. While many fermented products contain live cultures, some, such as bread, most beer, and pasteurized sauerkraut, may not contain live microbes due to baking, filtering, or cooking processes.

A 2021 Stanford trial indicated that consuming approximately six servings of fermented food daily for ten weeks increased the diversity of the gut microbiota. However, consumers are advised to consider specific nutritional benefits and potential sensitivities, such as histamine intolerance, when incorporating these foods into their diets.