Simply put, eating protein food is good for muscle growth. Chicken, duck and fish are good choices, among which chicken is the most cost-effective, especially chicken breast, which is digested faster than pork and beef, and chicken with the same weight provides more protein and is the cheapest. As for fish, most of the fish that can be made into fish chops have high water content, so the protein content of fish with the same volume is much less than that of chicken, so the cost performance of fish is usually not as high as that of chicken breast, but it is good to change the taste occasionally.

In addition to meat, there is a more cost-effective thing, that is, eggs. After converting into the price per gram of protein, eggs are indeed much cheaper than meat, and eggs are easy to digest. One disadvantage is that it is really easy to get tired of eating, so you should eat it with other foods.