Organic, deactivated yeast in flake form. Don't know why you'd want this? You won't believe how seriously good this tastes. Nutty. Umami. Slightly cheesy. Need we say more? Rich, roasted and yeasty aroma, too. So good, it's affectionately called "nooch" and "hippie dust." Best known as a vegan cheese substitute, but it's not just for vegans and hippies. Non-GMO. No ETO (considered carcinogenic by the EPA). Not irradiated. Certified Organic by QAI. Kosher Certified by KSA.