Kefir Milk

It is one of the richest natural sources of probiotics, supporting a healthy gut microbiome more strongly than many other fermented foods. This helps improve digestion, reduce bloating, and support immune function since a large part of immunity is in the gut. Kefir also supports nutrient absorption, especially calcium, magnesium, and B vitamins. Some people find it helps improve skin health indirectly because gut balance affects inflammation in the body.