Probiotics

There are trillions of bacteria in your intestines, and their health can make or break your training. Here’s what you need to know about the supplement that can turn bad bugs good.

The right combo of supplements — along with rest and a solid diet — can help you fight illness, keeping you training hard through flu season and beyond.

These probiotic powerhouses boost levels of good bacteria in your digestive tract, improving the health and balance of your body's collective microbiome.