performance nutrition

The humble red root contains a molecule that boosts muscle power in heart failure patients and athletes, a few small studies show. But it's not yet clear if beet juice can improve muscle stamina.

Many sumo wrestlers adhere to a rigid diet centered around a traditional Japanese dish called chanko-nabe. Champions say they count on the stew's balanced nutrition paired with lots of rice to win.

There's only so much fuel you can store before a big race. A performance nutrition expert gives us the rub on how to optimize carb-loading to avoid the miserable experience of running out of fuel.