Of course, you can also drink milk before exercise. It's not bad, but it's better to drink after fitness. Most people's money is limited, and the best time for protein and carbohydrate absorption is within half an hour to an hour after fitness. Most people don't need to add so many protein, so it's better to quote it after fitness. Of course, you can choose to drink a glass of milk half an hour before exercise and another half an hour after exercise. It is good to estimate how much protein your body needs every day. I usually add a small amount of protein and carbohydrates half an hour before exercise. Add some protein powder after fitness. Many people think that drinking milk before exercise is not good, probably because they think that drinking milk on an empty stomach is not easy to absorb. Moreover, it will be better to supplement some carbohydrates after fitness and then drink them. . . Well, by the way, there are three periods when the human body needs to supplement protein most, after exercise, after getting up in the morning and before exercise. (Because I haven't eaten all night, getting up early requires a lot of amino acids, which accelerates the decomposition of protein in the body. Supplement before exercise because you need amino acids to supplement energy during exercise. Intake of protein and amino acids at this time can reduce the decomposition of protein in the body. After exercise, it is because the muscles can absorb protein best at this time. After fitness, muscle fibers are destroyed and small holes are formed in the muscles. At this time, protein went in to fill these holes. Muscle gets bigger, which is the principle of muscle growth. )