There is no such thing as “the side effects and dangers of protein powder”. Protein powder is a dietary supplement that can be consumed by special groups of people such as fitness enthusiasts, but is not necessary for healthy people in general. Protein powder is usually made from whey protein, casein, soy protein and other raw materials to protein as the main component of the nutritional supplements. At present, it is mainly applied to some people with special nutritional needs, such as patients in the recovery stage after illness, fitness people. The main role of protein powder is to supplement protein for the human body, protein is the basis of life, moderate supplementation of protein powder, no side effects and harm. But there is no need for ordinary people to rely on protein powder to supplement protein. Because the source of protein in food is very rich. For example, soybeans contain 35%-40% high-quality protein, and all meat, poultry and seafood protein content also fluctuates around 20%. In addition, eggs, flour, and grains all contain more than 10% protein. The amount of protein needed by healthy adults in a day is about 50-60g. As long as we follow the dietary pagoda, scientific collocation and reasonable diet, we can get enough protein. So there is no need for healthy people to get protein by eating protein powder. Although protein powder has certain benefits to the human body, it is not suitable for people who are allergic to milk and soy, so as not to induce allergies.