Is Nutritional Yeast Keto?
Yes, nutritional yeast is keto-friendly. This savory, cheesy-tasting seasoning is low in carbohydrates and contains zero sugar, making it a perfect fit for the ketogenic diet. It allows you to add a rich umami flavor to your meals without knocking your body out of ketosis.
The Ingredient Breakdown
As a food scientist, I look at the label to determine the metabolic impact of a product. The primary ingredient in nutritional yeast is simply dried yeast (usually Saccharomyces cerevisiae). Unlike baking yeast, nutritional yeast is deactivated, meaning it won't cause your dough to rise or ferment in your gut. The core of this product is a single-celled fungi that is naturally low in net carbohydrates and high in protein.
The remaining ingredients are a vitamin and mineral blend. You'll see niacin (Vitamin B3), pyridoxine hydrochloride (Vitamin B6), thiamin hydrochloride (Vitamin B1), riboflavin (Vitamin B2), folic acid (Vitamin B9), and cyanocobalamin (Vitamin B12). These are micronutrients added to fortify the yeast, often exceeding 100% of your daily value. None of these vitamins or minerals contain carbohydrates or sugars, so they do not affect the ketosis state.
Nutritional Value
When analyzing nutritional yeast for the keto diet, the numbers are very favorable. A standard serving size (usually two tablespoons) typically contains between 2 to 4 grams of net carbohydrates. This is a negligible amount that easily fits within the strict daily limit of 20-50 grams required to maintain ketosis.
Fat content is generally zero, which is common for yeast products. While the keto diet is high-fat, nutritional yeast is not used as a fat source; rather, it is used as a flavor booster or a topping. It is also very low in calories (around 40-60 per serving), meaning it adds flavor to your chicken, broccoli, or popcorn without adding a significant caloric load. It fits the diet limits perfectly because it provides high flavor impact for very low carbohydrate cost.
Frequently Asked Questions
Does Nutritional Yeast contain dairy or gluten?
Is Nutritional Yeast good for weight loss?
Where can I buy Nutritional Yeast?
Is Nutritional Yeast safe for kids?

Pro Tip
Always double-check the label. Manufacturers change ingredients frequently without notice!




