A Tradition In Family Baking Kosher Parve All Natural Yeast For Use in Bread Machines & Traditional Baking Non GMO Project Verified Carol Stevens Guarantee 0 Calories - 0 Fat - 0 Sodium Active dry yeast provides a moderate and steady leavening rate to develop more flavor in all types of yeast doughs from low sugar to highly sweetened and enriched. The All-Natural Active Dry Yeast is pure yeast with no added ingredients.