Soy Sauce – Our Buck Fuel Soy Sauce is a protein based supplement that can be used year round, but should be used during the harsh winter months and during the fawning process. It is formulated to help bucks grow bigger antlers by giving the bucks the protein and minerals they need during the harsh winter months as well as after green up in the spring. These ingredients also help does maintain and improve health during pregnancy and fawning. It can and has been used as an attractant. Check out our video page to see it used on a self-filmed Maryland hunt as well as a West Virginia hunt.