WARNING: In large amounts, the high fiber content may cause digestive discomfort, and high niacin content can cause facial flushing. Some brands may contain tyramine, which can trigger migraines in some individuals.
Nutritional yeast (español: levadura nutricional) is a deactivated yeast, often a strain of Saccharomyces cerevisiae sold in the form of flakes or yellow powder. Its strong flavor is often described as nutty, cheesy, or creamy. Nutritional Yeast can be used as a flavor enhancer in cheese substitutes, mashed or fried potatoes, scrambled tofu, and popcorn. Even in small amounts, nutritional yeast is a significant source of some B–complex vitamins. Some brands are fortified with additional B12. It has approximately 9 grams of protein in 2 tablespoons. It provides 9 amino acids that the human body cannot produce and 5% (unfortified) to 20% (fortified with B12) of recommended daily iron.