Natural flavor is a material derived from food sources, which is used to impart a flavor and not for nutritional purposes. Natural flavors can come from spices, fruits, vegetables, yeast, herbs, plants (bark, bud, root, leaf), meat, seafood, poultry, eggs, dairy, or fermentation of these items. Potassium sorbate is a salt of sorbic acid that is used in foods such as cheeses, bread, sausages, and others, to protect against yeast and molds.