Pumpkin Protein is derived from pumpkin seeds, and is a superfood rich in antioxidants, magnesium, healthy fats and fiber. Pumpkin seeds contain all nine essential amino acids that the human body cannot make on its own. The seeds are also full of lysine, leucine, and arginine which are amino acids essential for muscle building. Pumpkin protein also includes tocopherols, phytoestrogens, vitamins, minerals and omega-3 fatty acids.