These Nutrients Are Key For Diversifying Your Gut Microbiome, Research Finds

While a lot of research has been done on how carbohydrates, fibers, and proteins impact the gut microbiome, this review focused exclusively on antioxidants—which are comparatively understudied in the gut space.

For this review, researchers based primarily in Asia and the UK combed through existing research to make a more definitive statement about the impact of antioxidants on the gut microbiome.

Antioxidants, the authors write, essentially "scavenge free radicals" in the body. If we have too many free radicals and not enough antioxidants, it leads to oxidative stress—a condition that is detrimental to our skin, cognition, and—you guessed it—our gut. "Many studies report that prolonged exposure to reactive oxygen species (ROS) can result in microbial dysbiosis2," the study reads, and this dysbiosis (essentially, an imbalance between good bacteria and bad bacteria) can contribute to a whole host of GI issues, as well as chronic fatigue, inflammation, food intolerances, and even diseases like cardiovascular disease, cancer, diabetes, and obesity.

The Journal of Functional Foods review goes on to explain how different sources of antioxidants—such as carotenoids, polyphenols, ascorbic acid, and mineral elements such as zinc and selenium—have unique benefits for gut health. This means that it's beneficial to pile a variety of antioxidant-rich foods onto your plate. One easy way to do so is to "eat the rainbow" and opt for a host of colorful ingredients, as color relates to the antioxidant capacity in some fruits and vegetables.

Introducing dietary supplements to your routine is another way to keep your microbiota in tiptop shape. You can opt for a supplement that isolates potent antioxidants like vitamin C and zinc or contains antioxidant-rich ingredients such as turmeric—which has been shown to neutralize free radicals and protect the body from oxidative stress.