Short-term high-protein diets are generally not prone to harm. The harms of long-term high-protein diets include increased burden on the digestive tract, increased burden on the kidneys, and increased risk of osteoporosis. 1. Digestive burden: excessive intake of protein in the body can not be absorbed and utilized by the body, it will lead to indigestion, nausea, abdominal distension and other symptoms. 2. Increase the burden on the kidneys: the kidneys are responsible for the reabsorption of protein metabolites and the excretion of end products. Excessive intake of protein will increase the load on the kidneys, leading to nitrogen retention and affecting the normal operation of the kidneys. 3. Increase the risk of osteoporosis: Excessive protein intake will result in more calcium loss, which reduces the ability to maintain bone sclerosis function and may increase or aggravate the risk of osteoporosis. If a high protein diet is needed, it is recommended that it be carried out reasonably under the guidance of a professional nutritionist so as not to jeopardize your health.