Aerobics is a sport that is performed to the accompaniment of music,with physical exercises as the basic means and aerobic exercise as the basis,to achieve the purpose of promoting health and shaping the body.During aerobics,the nutrients in the human body are decomposed and consumed,so they must be supplemented in time.This paper combines the characteristics of aerobics,based on the athlete's energy consumption in training and competition,and puts forward scientific and reasonable dietary nutritional supplementation recommendations.By rationalizing the diet,it can better improve the athletic level and athletic ability of aerobics athletes,and also help to prevent sports injuries.In aerobics training,athletes and their coaching teams should develop personalized dietary plans based on individual differences and specific conditions to maximize the role of nutrition.