The lowly gut can do so many things: a healthy gut can contribute to heart and brain health, better sleep, and a stronger immune system. And eating some fermented foods can be beneficial to your gut health, says Sollid.
"Look for the phrase 'contains live and active cultures' on the label and the names of bacteria in the ingredients list to be sure that the food or drink you’re consuming contains probiotics," he says. Many fermented foods also tout other benefits. For example, yogurt, one of the most popular probiotic-rich foods, is a great source of protein, vitamins, and minerals.