Raw Fennel Bulb — USDA FoodData Central nutrition facts (per 100g)

| Nutrient | Amount per 100g |
| --- | --- |
| Ash | 0.862 g |
| Biotin | 1.94 µg |
| Calcium, Ca | 41.3 mg |
| Carbohydrate, by difference | 5.49 g |
| Copper, Cu | 0.073 mg |
| Energy | 26.9 kcal |
| Energy (Atwater General Factors) | 26.9 kcal |
| Fiber, total dietary | 2.05 g |
| Folate, total | 37 µg |
| Fructose | 1.35 g |
| Glucose | 1.59 g |
| Iron, Fe | 0 mg |
| Lactose | 0 g |
| Magnesium, Mg | 15 mg |
| Maltose | 0 g |
| Manganese, Mn | 0.124 mg |
| Nitrogen | 0.148 g |
| Phosphorus, P | 33.4 mg |
| Potassium, K | 332 mg |
| Protein | 0.922 g |
| Sodium, Na | 49 mg |
| Sucrose | 0.261 g |
| Sugars, Total | 3.2 g |
| Total lipid (fat) | 0.14 g |
| Vitamin C, total ascorbic acid | 14.7 mg |
| Water | 92.6 g |
| Zinc, Zn | 0.141 mg |

Values are raw as published by USDA at the 100g basis — not rounded per 21 CFR 101.9(c) label-declaration rules, and 100g is USDA's publication basis, not a serving size any US nutrition label declares against.

Source: USDA FoodData Central, FDC ID 2747655, usda_ff (released 2026-04-30). https://bettermenu.live/tools/ingredient-search/us/foods/raw-fennel-bulb-2747655/