The researchers focused on plant-based fermented foods instead of dairy products because these foods contain much more than live microbes alone. Instead of giving everyone the same advice, doctors may one day recommend specific fermented foods based on a person’s own microbiome and health needs. Large human studies will still be needed before doctors can recommend specific fermented foods for medical purposes. For more information about gut health, please see recent studies about the crucial link between diet, gut health, and the immune system and results showing that Low-gluten, high-fiber diets boost gut health and weight loss. For more information about gut health, please see recent studies about Navigating inflammatory bowel disease (IBD) with diet and results showing that Mycoprotein in diet may reduce risk of bowel cancer and improve gut health.