Enjoy these 2 Canisters of Collagen Fuel - (one vanilla and one chocolate) plus a Primal Kitchen Cookbook. Give your body's restorative powers a boost with Primal Kitchen Collagen Fuel protein shakes. Collagen is the most abundant source of protein in the human body and helps support joints, hair, skin, nails and connective tissues. Our Collagen Fuels contain coconut milk as the primary source of beneficial healthy fat, helping to take the edge off hunger for hours. So get ready to stir, blend and shake!