Nutritional Yeast

Nutritional yeast is a deactivated yeast, often a strain of Saccharomyces cerevisiae, which is sold commercially as a food product. It's sold in the form of flakes or as a yellow powder similar in texture to cornmeal, and can be found in the bulk aisle of most natural food stores. It is popular with vegans and vegetarians and may be used as an ingredient in recipes or as a condiment.

It is a source of protein and vitamins, especially the B-complex vitamins, and is a complete protein. It is also naturally low in fat and sodium and is free of sugar, dairy, and gluten. Sometimes nutritional yeast is fortified with Vitamin B12.

Nutritional yeast has a strong flavor that is described as nutty, cheesy, or creamy, which makes it popular as an ingredient in cheese substitutes. It is often used by vegans in place of cheese. It can be used in many recipes in place of cheese, such as mashed and fried potatoes, as well as put into scrambled tofu as a substitute for scrambled eggs. Another popular use is as a topping for popcorn. Some movie theaters offer it along with salt or cayenne pepper as a popcorn condiment.

In Australia it is sometimes sold as "savoury yeast flakes." In New Zealand, it has long been known as Brufax. In the United States it is sometimes referred to as "nooch", or "yeshi," an Ethiopian name meaning "for a thousand". Though "nutritional yeast" usually refers to commercial products, inadequately fed prisoners of war have used "home-grown" yeast to prevent vitamin deficiency. Nutritional yeast is different from yeast extract, which has a very strong flavour and comes in the form of a dark brown paste.