Food · Vegetables and Vegetable Products
Fennel nutrition facts
A typical portion of fennel (1 cup, sliced; 87 g, bulb, raw (SR Legacy)) has 25 calories and 1g of protein (USDA FoodData Central). USDA lists 2 descriptions of it: per 100 g they range from 27 calories (bulb, raw) to 31 (bulb, raw).
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 Fennel, bulb, raw, scaled to the portion. Check the USDA record.
- Protein per 100 g
- 1.2g
- more than 18% of 8,218 USDA reference foods
- Calories per 100 g
- 31
- more than 7% of reference foods
- Sodium per 100 g
- 52mg
- more than 34% of reference foods
1 cup, sliced weighs 87 g in USDA's record for Fennel, bulb, raw (FDC 169385).
Where the calories come from: 81% carbohydrate, 5% fat and 14% protein (4 calories a gram of protein or carbohydrate, 9 of fat).
Also rich in
Source: USDA FoodData Central (FDC 169385), every nutrient the record reports; FDA Daily Values, 21 CFR 101.9.
Every form of fennel USDA describes
Bulb, raw (SR Legacy) has the most calories per 100 g (31); the fewest: Bulb, raw (Foundation) (27)
| USDA description | Calories | Protein | Fat | Sodium |
|---|---|---|---|---|
| Fennel, bulb, raw (SR Legacy) | 31 | 1.2 g | 0.2 g | 52 mg |
| Fennel, bulb, raw (Foundation) | 27 | 0.9 g | 0.1 g | 49 mg |
Every nutrient in this record (69)
The portion is 1 cup, sliced (87 g); % DV is for that portion.
Energy, macronutrients and sugars (14)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Protein | 1.08 g | 1.24 g | 2% |
| Total lipid (fat) | 0.17 g | 0.20 g | 0% |
| Carbohydrate, by difference | 6.35 g | 7.30 g | 2% |
| Ash | 0.91 g | 1.05 g | |
| Energy | 27.0 kcal | 31.0 kcal | |
| Alcohol, ethyl | 0 g | 0 g | |
| Water | 78.5 g | 90.2 g | |
| Total Sugars | 3.42 g | 3.93 g | |
| Fiber, total dietary | 2.70 g | 3.10 g | 10% |
| Cholesterol | 0 mg | 0 mg | 0% |
| Fatty acids, total trans | 0 g | 0 g | |
| Fatty acids, total saturated | 0.078 g | 0.090 g | 0% |
| Fatty acids, total monounsaturated | 0.059 g | 0.068 g | |
| Fatty acids, total polyunsaturated | 0.15 g | 0.17 g |
Minerals (10)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Calcium, Ca | 42.6 mg | 49.0 mg | 3% |
| Iron, Fe | 0.64 mg | 0.73 mg | 4% |
| Magnesium, Mg | 14.8 mg | 17.0 mg | 4% |
| Phosphorus, P | 43.5 mg | 50.0 mg | 3% |
| Potassium, K | 360 mg | 414 mg | 8% |
| Sodium, Na | 45.2 mg | 52.0 mg | 2% |
| Zinc, Zn | 0.17 mg | 0.20 mg | 2% |
| Copper, Cu | 0.057 mg | 0.066 mg | 6% |
| Manganese, Mn | 0.17 mg | 0.19 mg | 7% |
| Selenium, Se | 0.61 µg | 0.70 µg | 1% |
Vitamins (24)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Retinol | 0 µg | 0 µg | |
| Vitamin A, RAE | 41.8 µg | 48.0 µg | 5% |
| Carotene, beta | 503 µg | 578 µg | |
| Carotene, alpha | 0 µg | 0 µg | |
| Vitamin E (alpha-tocopherol) | 0.50 mg | 0.58 mg | 3% |
| Vitamin D (D2 + D3) | 0 µg | 0 µg | 0% |
| Cryptoxanthin, beta | 0 µg | 0 µg | |
| Lycopene | 0 µg | 0 µg | |
| Lutein + zeaxanthin | 528 µg | 607 µg | |
| Vitamin C, total ascorbic acid | 10.4 mg | 12.0 mg | 12% |
| Thiamin | 0.0087 mg | 0.010 mg | 1% |
| Riboflavin | 0.028 mg | 0.032 mg | 2% |
| Niacin | 0.56 mg | 0.64 mg | 3% |
| Pantothenic acid | 0.20 mg | 0.23 mg | |
| Vitamin B-6 | 0.041 mg | 0.047 mg | 2% |
| Folate, total | 23.5 µg | 27.0 µg | |
| Vitamin B-12 | 0 µg | 0 µg | 0% |
| Choline, total | 11.5 mg | 13.2 mg | 2% |
| Vitamin K (phylloquinone) | 54.6 µg | 62.8 µg | 46% |
| Folic acid | 0 µg | 0 µg | |
| Folate, food | 23.5 µg | 27.0 µg | |
| Folate, DFE | 23.5 µg | 27.0 µg | 6% |
| 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 g | 0 g | |
| SFA 14:0 | 0.0017 g | 0.0020 g | |
| SFA 16:0 | 0.069 g | 0.079 g | |
| SFA 18:0 | 0.0078 g | 0.0090 g | |
| MUFA 18:1 | 0.057 g | 0.065 g | |
| PUFA 18:2 | 0.15 g | 0.17 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 | 0.0017 g | 0.0020 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 169385: 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 fennel?
25 in 1 cup, sliced (87 g) of bulb, raw (SR Legacy); 27 to 31 per 100 g across USDA's descriptions.
How much protein is in fennel?
1g in 1 cup, sliced; 1.2 g per 100 g.
How much sodium is in fennel?
45mg in 1 cup, sliced; 52 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