First of all, ask yourself whether you belong to a professional fitness athlete or an ordinary fitness enthusiast. If it is the latter, your usual food can completely supplement your nutrition. The use of protein powder has strict requirements. If it is used when the human body does not reach a certain exercise intensity, it will harm the body, especially the liver and kidney. At present, it is immoral for some gyms in China to sell sports supplements to their members in order to increase their income. In addition, if the exercise intensity is high, we should choose foreign knowledge. Well-known brands have completely lost their morality because of domestic businesses. Milk powder can be mixed with whey protein powder, not to mention, but what sports supplements need most is purity.

At present, our usual food is enough to meet our intake requirements of protein. Beef, egg white, fish and soybeans are all good sources of protein.