I suggest drinking more soy milk and soybeans, because soybeans have high protein content, and also have the functions of whitening and repairing skin. This is a good complement to protein. And beef. Beef is a high-protein meat, protein is higher than other meats, so you can eat more in your usual diet. Lean pork is also a kind of food with high protein content. You can usually cook some soup with lean pork, so that you can make better use of its protein. Drinking more soup is also good for the stomach, which can be absorbed quickly and help the body to lose some fat.

I am allergic to milk myself. I can't drink any milk. Once you drink it, you will have severe diarrhea and even an intravenous drip. So I supplement protein every day by drinking a cup of soybean milk and adding an egg in the morning. This way of eating can supplement protein for me, which is helpful for the absorption of the stomach. My friend is also a person who doesn't eat eggs or fish. Any fish will be sick if they smell this smell. She is also afraid of fish, because she thinks it is horrible to have fish scales, so she resists these things. So she usually eats some foods made of bean products, such as tofu. Tofu is really high in nutrients, and it is really good to supplement protein. People who believe in Buddhism don't eat meat for religious reasons, so it's also bean products to supplement protein.

People who don't eat fish, eggs and milk in daily life should also add some things like cod liver oil, because things like cod liver oil can improve eyesight, carrots can replace these things, and you can also drink some forget-me-not tea appropriately. People who do a lot of exercise, people who don't eat this kind of food, must eat more meat, or they will lack protein and endanger their health.