Good source of B Vitamins. Gluten free. Great on popcorn. Resealable package. An employee-owned company. To Your Good Health. - Bob Moore. Nutritional yeast is a unique vegetarian food with a pleasantly cheesy flavor and a powerful nutritional punch! It is a good source of B vitamins, including B12, and provides 8 grams of protein per serving. For a rich umami flavor, add nutritional yeast to sauces, scrambles, kale chips, crackers and biscuits. To boost nutrition and please your taste buds, sprinkle over vegetables, baked potatoes or popcorn. You can see our quality. Tested and confirmed gluten free in our quality control laboratory.