Zheng Qinwen reaches for a banana between games; doctor reveals sports nutrition tips

Tennis star Zheng Qinwen eats a banana between games. A doctor points out that bananas are rich in potassium, helping athletes replenish energy and maintain electrolyte balance. Those who exercise on an empty stomach or have low blood potassium may want to try one during exercise. #健康饮食 #SportsNutrition