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营养是人体赖以生存的物质基础，合理营养对促进生长发育，提高身体机能，增进健康，增 强免疫力，预防疾病，延长寿命都具有重要作用。体育运动时，可引起体内的物质的能量代谢过程加强，分 解和消耗增加，酸性物质在体内堆积等一系列变化。运动员的合理营养有助于稳定体内环境，调节各器官功 能，促进代谢顺利进行，从而也有助于运动能力的提高。
Nutrition is the material basis on which the human body lives. Reasonable nutrition plays an important role in promoting growth and development, improving body functions, improving health, enhancing immunity, preventing diseases and prolonging life expectancy. Sports, can cause the body's energy metabolism process to strengthen, decomposition and consumption increase, accumulation of acid in the body and a series of changes. Reasonable nutrition athletes help to stabilize the body environment, regulate the function of various organs and promote the smooth progress of metabolism, which also contribute to exercise capacity.