Yeast extract is a food flavouring made from the same yeast used to make bread and beer. It’s also added to some foods like soy sauce and cheese for a savory flavor. Yeast extract contains all the natural macromolecules originally present inside the yeast cell. It’s rich in macronutrients like carbohydrates and proteins and micronutrients like mineralsand vitamins. Among vitamins, yeast extract is high in B vitamins