The term "meat protein" refers to any type of protein that is derived from animal flesh, such as beef, pork, chicken or lamb. Meats are considered complete proteins because they contain all nine essential amino acids needed for human nutrition.
This is very important because the meat meal is the only source of meat protein in this recipe. (pawster.com)
In this recipe, I believe that pea and potato protein should not be considered as a big problem, because there are plenty of high quality meat protein sources included in this formula. (dogfoodselector.com)
They provide good meat protein with chicken, chicken liver, and beef. (dogfoodinsider.com)