MATTHEW KADEY MS RD

You may know that you need carbs to perform well, but not always for the reasons you think. Here’s the new science on why going carb-light can actually be hurting your performance.

The microorganisms in your gut microbiome can affect how well you train and race. Learn the latest science on the athlete's microbiome, plus ways that you can make it work harder for you.

The supplement Athletic Greens/AG1 seems to be everywhere in the endurance market these days. Registered Dietitian Matthew Kadey takes a look at "greens powders" for athletes and whether they deliver on their mighty claims.