Protein intake is generally 1g per kilogram of body weight per day, but for growing children and pregnant women, the amount of protein is increased, generally about 1.5g per kilogram of body weight per day. For people who exercise regularly and need to increase their muscle strength, the amount of protein needed is increased even more, requiring about 1.5-2g per kilogram of body weight per day. For people with kidney disease, especially diabetic nephropathy, the protein requirement is reduced, the amount of protein per kilogram of body weight per day is 0.8-0.6g, and what should be increased is high-quality protein, high-quality protein from sea cucumber, milk, eggs, deep-sea fish, such as Spanish mackerel, swordfish, salmon, tuna and other types of fish.