Has Top Tennis Player Performed Better After Giving Up Gluten?

After tennis star Novak Djokovic’s nutritionist discovered he was allergic to gluten, he switched to a gluten-free diet. Since then he’s made the final of the U.S. Open, won the Davis Cup and Australian Open, defeated Rafael Nadal four times, and is currently on a 39-match winning streak, the third longest of the Open era. […]