is cheese animal protein
Sources of Complete Protein. Animal sources of protein are complete proteins, and some plant foods contain all essential amino acids. Sources of complete animal proteins include milk, yogurt, cheese, meat, poultry, fish, seafood and eggs.Soy protein is a plant-based source of high-quality, complete protein.nimal sources of protein are complete proteins, and some plant foods contain all essential amino acids. Sources of complete animal proteins include milk, yogurt, cheese, meat, poultry, fish, seafood and eggs.