2. Grass-Fed Beef
Creatine is an essential substance that is mandatory for proper muscle growth. Although there are many creatine supplements in the market, you can have a proper creatine intake if you consume grass-fed beef on a regular basis. Creatine increases muscle mass by accelerating the protein breakdown process, leading to faster muscle growth. Moreover, grass-fed beef is rich in iron and magnesium alongside B12, which are also great healthy nutrients that can promote gradual muscle growth.