Food · Baked Products
Yeast nutrition facts
A typical portion of yeast (1 tablespoon; 12 g, yeast) has 40 calories and 5g of protein (USDA FoodData Central). USDA lists 3 descriptions of it: per 100 g they range from 105 calories (leavening agents, baker's, compressed) to 325 (yeast).
Nutrition Facts
* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice. Protein % DV here is not corrected for protein quality.
USDA values per 100 g for Yeast, scaled to the portion. Check the USDA record.
- Protein per 100 g
- 40.4g
- more than 99% of 8,218 USDA reference foods
- Calories per 100 g
- 325
- more than 76% of reference foods
- Sodium per 100 g
- 51mg
- more than 34% of reference foods
1 tablespoon weighs 12 g in USDA's record for Yeast (FDC 2710005).
Where the calories come from: 42% carbohydrate, 17% fat and 41% protein (4 calories a gram of protein or carbohydrate, 9 of fat).
Also rich in
- Thiamin1.3 mg in 1 tablespoon (12 g), 110% of the Daily Value
- Folate281 µg DFE in 1 tablespoon (12 g), 70% of the Daily Value
- Riboflavin0.5 mg in 1 tablespoon (12 g), 37% of the Daily Value
- Niacin4.8 mg in 1 tablespoon (12 g), 30% of the Daily Value
- Vitamin B60.2 mg in 1 tablespoon (12 g), 11% of the Daily Value
Source: USDA FoodData Central (FDC 2710005), every nutrient the record reports; FDA Daily Values, 21 CFR 101.9.
Every form of yeast USDA describes
Yeast has the most calories per 100 g (325); the fewest: Leavening agents… (FDC 175042) (105)
| USDA description | Calories | Protein | Fat | Sodium |
|---|---|---|---|---|
| YeastSame values: Leavening agents, yeast, baker's, active dry | 325 | 40.4 g | 7.6 g | 51 mg |
| Leavening agents, yeast, baker's, compressed | 105 | 8.4 g | 1.9 g | 30 mg |
Every nutrient in this record (65)
The portion is 1 tablespoon (12 g); % DV is for that portion.
Energy, macronutrients and sugars (12)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Protein | 4.85 g | 40.4 g | 10% |
| Total lipid (fat) | 0.91 g | 7.61 g | 1% |
| Carbohydrate, by difference | 4.95 g | 41.2 g | 2% |
| Energy | 39.0 kcal | 325 kcal | |
| Alcohol, ethyl | 0 g | 0 g | |
| Water | 0.61 g | 5.08 g | |
| Total Sugars | 0 g | 0 g | |
| Fiber, total dietary | 3.23 g | 26.9 g | 12% |
| Cholesterol | 0 mg | 0 mg | 0% |
| Fatty acids, total saturated | 0.12 g | 1.00 g | 1% |
| Fatty acids, total monounsaturated | 0.52 g | 4.31 g | |
| Fatty acids, total polyunsaturated | 0.0020 g | 0.017 g |
Minerals (9)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Calcium, Ca | 3.60 mg | 30.0 mg | 0% |
| Iron, Fe | 0.26 mg | 2.17 mg | 1% |
| Magnesium, Mg | 6.48 mg | 54.0 mg | 2% |
| Phosphorus, P | 76.4 mg | 637 mg | 6% |
| Potassium, K | 115 mg | 955 mg | 2% |
| Sodium, Na | 6.12 mg | 51.0 mg | 0% |
| Zinc, Zn | 0.95 mg | 7.94 mg | 9% |
| Copper, Cu | 0.052 mg | 0.44 mg | 6% |
| Selenium, Se | 0.95 µg | 7.90 µg | 2% |
Vitamins (23)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Retinol | 0 µg | 0 µg | |
| Vitamin A, RAE | 0 µg | 0 µg | 0% |
| Carotene, beta | 0 µg | 0 µg | |
| Carotene, alpha | 0 µg | 0 µg | |
| Vitamin E (alpha-tocopherol) | 0 mg | 0 mg | 0% |
| Vitamin D (D2 + D3) | 0 µg | 0 µg | 0% |
| Cryptoxanthin, beta | 0 µg | 0 µg | |
| Lycopene | 0 µg | 0 µg | |
| Lutein + zeaxanthin | 0 µg | 0 µg | |
| Vitamin C, total ascorbic acid | 0.036 mg | 0.30 mg | 0% |
| Thiamin | 1.32 mg | 11.0 mg | 110% |
| Riboflavin | 0.48 mg | 4.00 mg | 37% |
| Niacin | 4.82 mg | 40.2 mg | 30% |
| Vitamin B-6 | 0.18 mg | 1.50 mg | 11% |
| Folate, total | 281 µg | 2,340 µg | |
| Vitamin B-12 | 0.0084 µg | 0.070 µg | 0% |
| Choline, total | 3.84 mg | 32.0 mg | 1% |
| Vitamin K (phylloquinone) | 0.048 µg | 0.40 µg | 0% |
| Folic acid | 0 µg | 0 µg | |
| Folate, food | 281 µg | 2,340 µg | |
| Folate, DFE | 281 µg | 2,340 µg | 70% |
| Vitamin E, added | 0 mg | 0 mg | |
| Vitamin B-12, added | 0 µg | 0 µg |
Fatty acids (19)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| SFA 4:0 | 0 g | 0 g | |
| SFA 6:0 | 0 g | 0 g | |
| SFA 8:0 | 0 g | 0 g | |
| SFA 10:0 | 0 g | 0 g | |
| SFA 12:0 | 0.0059 g | 0.049 g | |
| SFA 14:0 | 0 g | 0 g | |
| SFA 16:0 | 0.085 g | 0.71 g | |
| SFA 18:0 | 0.030 g | 0.25 g | |
| MUFA 18:1 | 0.24 g | 2.02 g | |
| PUFA 18:2 | 0.0020 g | 0.017 g | |
| PUFA 18:3 | 0 g | 0 g | |
| PUFA 20:4 | 0 g | 0 g | |
| PUFA 22:6 n-3 (DHA) | 0 g | 0 g | |
| MUFA 16:1 | 0.27 g | 2.29 g | |
| PUFA 18:4 | 0 g | 0 g | |
| MUFA 20:1 | 0 g | 0 g | |
| PUFA 20:5 n-3 (EPA) | 0 g | 0 g | |
| MUFA 22:1 | 0 g | 0 g | |
| PUFA 22:5 n-3 (DPA) | 0 g | 0 g |
Source: USDA FoodData Central, FDC 2710005: every value the record reports, per 100 g as USDA gives it and scaled to the portion; Daily Values: 21 CFR 101.9.
Source: USDA FoodData Central (SR Legacy, Foundation Foods and Survey foods), April 30, 2026 release.
Questions
How many calories are in yeast?
40 in 1 tablespoon (12 g) of yeast; 105 to 325 per 100 g across USDA's descriptions.
How much protein is in yeast?
5g in 1 tablespoon; 40.4 g per 100 g.
How much sodium is in yeast?
5mg in 1 tablespoon; 51 mg per 100 g. Salt added in cooking changes it: USDA lists salted and unsalted forms separately where it measured both.
Sources for this page
- USDA FoodData Central
- the food and product records, April 30, 2026 release. fdc.nal.usda.gov
- FoodData Central documentation
- what each data type is and how branded records are submitted. fdc.nal.usda.gov
- USDA Food and Nutrient Database for Dietary Studies
- the survey foods and their portions. ars.usda.gov
- 21 CFR 101.9, Nutrition labeling of food
- the label format, rounding and Daily Values. ecfr.gov
- FDA, How to Understand and Use the Nutrition Facts Label
- the 5% and 20% Daily Value rule. fda.gov