A complete source of protein with naturally occurring isoflavones Looking for a good vegan protein source? Look no further than our Soy Protein, which provides 13g of vegan protein per serving with 0g of carbohydrates, and it's cholesterol free and sugar free. Soy is one of the few complete, plant-based protein sources, and it contains all the essential amino acids. It helps support muscles during exercise, and it is a natural source of phytic acid, which may provide antioxidant support. Plu....