Energy
middle half31 kcalthis record per 100 g
- Corpus median
- 45 kcal
- Middle 50%
- 31–62 kcal
Based on 122 records reporting energy.
Vegetablesmoderate variability
Fennel bulb, raw calories: 8 per 25 g
This exact USDA record reports 8 calories for 25 g. That answer belongs to this description and weight; it is not a universal value for every meal that shares the name.
Quick facts
USDA reference amount · 25 g
- Calories
- 8 kcal
- Protein
- 0.3 g
- Carbohydrate
- 1.8 g
- Total fat
- 0.1 g
- Fiber
- 0.8 g
- Sodium
- 13 mg
Portion calculator
Estimate your portion
Choose a source measure or enter the weight you ate.
Estimated for 25 g
8calories
Fennel bulb, raw
- Protein
- 0.3 g
- Carbs
- 1.8 g
- Fat
- 0.1 g
— means the source has no value available.
These values scale the selected reference food by weight. Ingredients, preparation, and portion size can change your meal’s estimate.
Nutrition facts, household measures, preparation notes and USDA sources
The editorial read
The useful answer has a weight, a composition, and an identity
Portion: the cited record reports about 8 calories for USDA reference amount at 25 grams. On a fixed-weight basis, the same record contains 31 calories per 100 grams. The first number answers a portion question; the second answers a concentration question.
Composition: that source amount also reports 0.3 g protein, 0.8 g fiber, and 13 mg sodium. Read those values together: a calorie total by itself cannot describe the nutrient profile.
Identity: the largest listed formulation input is fennel, bulb, raw, representing 100% of the record’s listed input weight. These are provenance for a standardized calculation, not a recipe for your plate.
The reference amount and 1 fennel bulb answer different portion questions. Their values are scaled independently from the same per-100-gram source record.
The household measures attached to this record span roughly 8–73 calories across the listed portions. That is a set of scaled examples—not a confidence interval, a recommendation, or a claim about the full universe of recipes.
Calculated from the smallest and largest usable household measures listed by USDA for this exact FNDDS record; not a confidence interval.
Record-specific decision brief
What the numbers say—and what choice still belongs to you
This analysis belongs to USDA FDC 2709779: “Fennel bulb, raw.” It separates gram-weight arithmetic, corpus context, label signals, and record selection so one number does not have to answer four different questions.
01 · Portion arithmetic
Three weights, one fixed composition
For FDC 2709779, each row multiplies the published per-100-gram values by its stated weight. “75% of the reference weight” through “1 fennel bulb” are weight scenarios: named measures come from USDA, while percentage labels are transparent arithmetic.
| Scenario | Weight | Energy | Protein | Fiber | Sodium |
|---|---|---|---|---|---|
| 75% of the reference weightArithmetic scenario from the reference weight | 18.8 g | 6 kcal | 0.2 g | 0.6 g | 10 mg |
| USDA reference amountExact record reference weight | 25 g | 8 kcal | 0.3 g | 0.8 g | 13 mg |
| 1 fennel bulbUSDA-listed household measure | 235 g | 73 kcal | 2.9 g | 7.3 g | 122 mg |
02 · Fixed-weight context
Where 100 grams sits inside Other vegetables and combinations
The comparison set contains 122 exact records in the Other vegetables and combinations USDA category. Here, “middle half” describes FDC 2709779’s energy position in that corpus—not nutritional quality, desirability, or a health rating.
Protein
lower quarter1.2 gthis record per 100 g
- Corpus median
- 1.9 g
- Middle 50%
- 1.2–2.8 g
Based on 122 records reporting protein.
Dietary fiber
middle half3.1 gthis record per 100 g
- Corpus median
- 2.3 g
- Middle 50%
- 1.7–3.1 g
Based on 122 records reporting dietary fiber.
Sodium
lower quarter52 mgthis record per 100 g
- Corpus median
- 135 mg
- Middle 50%
- 102–165 mg
Based on 122 records reporting sodium.
03 · FDA label lens
The strongest strength-side and tradeoff-side signals
At FDC 2709779’s 25 g reference weight, none of the compatible strength-side nutrients evaluated here reaches 5% Daily Value; the larger tradeoff-side percentage is Sodium. Percentages use FDA label Daily Values, whose general “high” guide begins at 20% Daily Value. This is not an overall score or a personalized target.
Strength-side signals
No compatible strength-side nutrient evaluated here reaches 5% DV at this reference weight, so this page does not manufacture a “strength” from a negligible percentage.
Tradeoff-side signals
Sodium13 mg
≈ 1% DV. This does not cross the FDA’s 20% ‘high’ guide.
Saturated fat0 g
≈ 0% DV. This does not cross the FDA’s 20% ‘high’ guide.
04 · Highest-impact checks
The three levers most worth resolving first
For “Fennel bulb, raw,” the first-pass checks follow the evidence actually published: its named weights, the FDC 2709907 alternative, and its source-formulation identity.
- 01
Portion sensitivity around 25 g
A 25% weight move in either direction spans 18.8–31.3 g. When composition is held constant, those endpoints calculate to 6 kcal and 10 kcal.
- 02
Record choice: compare with FDC 2709907
At an equal 100 g, this record has 3 g less total fat than “Fennel bulb, cooked.” That is a record-level contrast; it does not identify which ingredient caused the difference.
- 03
Single listed source: Fennel, bulb, raw
USDA derives this record from one listed source-input row at 100 g. Real preparations can still differ in water, cooking state, brand, and served weight.
05 · Exact-record choice
Select by literal evidence, not the shortest name
Keep this record when “raw” fits. Inspect FDC 2709907 when “cooked” is the more literal description of the food and preparation.
Keep this profile when these fields fit
Fennel bulb, raw
- Exact source wording
- “Fennel bulb, raw”
- Source identity
- USDA FDC 2709779 · FNDDS 75109010
- Named qualifiers
- raw
Inspect this alternative when its fields fit better
Fennel bulb, cooked
- Exact source wording
- “Fennel bulb, cooked”
- Source identity
- USDA FDC 2709907 · FNDDS 75215120
- Named qualifiers
- cooked
- Source inputs unique in this pair
- Oil or table fat, NFS · Salt, table
Choose the closest description
Which USDA record fits your meal?
Treat the long description as data. The phrases doing the most work here are “raw”. Match those details first; then compare the database weight with the amount you mean.
On smaller screens, focus a nutrition table and scroll horizontally to read every column.
| Exact record | Source serving | Calories / 100 g | Protein / 100 g | Fat / 100 g | Fiber / 100 g | Sodium / 100 g |
|---|---|---|---|---|---|---|
| This recordFennel bulb, raw | 25 g8 kcal | 31 kcal | 1.2 g | 0.2 g | 3.1 g | 52 mg |
| Fennel bulb, cooked | 78 g48 kcal | 62 kcal | 1.4 g | 3.2 g | 3.5 g | 202 mg |
| Broccoflower, raw | 32 g10 kcal | 31 kcal | 3 g | 0.3 g | 3.2 g | 23 mg |
| Mushrooms, raw | 35 g11 kcal | 31 kcal | 2.9 g | 0.4 g | 1.7 g | 6 mg |
| Turnip, raw | 65 g18 kcal | 28 kcal | 0.9 g | 0.1 g | 1.8 g | 67 mg |
| Kohlrabi, raw | 68 g18 kcal | 27 kcal | 1.7 g | 0.1 g | 3.6 g | 20 mg |
| Cauliflower, raw | 55 g14 kcal | 25 kcal | 1.9 g | 0.3 g | 2 g | 30 mg |
How to compare FDC 2709779: its source amount is 25 g; every 100-gram column removes portion size from the record-to-record comparison. Neither denominator determines your plate’s weight or recipe.
Household measures
Compare listed portions
For FDC 2709779, the 1 displayed measure scale the same source composition by gram weight; rounding changes presentation, not the underlying ratio.
1 fennel bulb
73 kcal
235 g
At a glance
Nutrient signals in the source amount
For FDC 2709779, Vitamin C is the largest displayed non-protein Daily Value signal. Read the set as label context—not a personalized score.
Vitamin C
3 mg≈ 3% Daily ValueDietary fiber
0.8 g≈ 3% Daily ValuePotassium
103.5 mg≈ 2% Daily ValueThe percentages above apply to FDC 2709779’s 25 g reference amount. FDA Daily Values are general label references, not individualized energy or medical targets. Read the FDA explanation ↗
Nutrition facts
Compare the source serving with 100 grams
Values are rounded for readability. The source serving is 25 g.
| Nutrient | Amount | Approx. % Daily Value |
|---|---|---|
| Calories | 8 kcal 31 kcal | Not established Not established |
| Protein | 0.3 g 1.2 g | Not shown Not shown |
| Carbohydrate | 1.8 g 7.3 g | 1% 3% |
| Total fat | 0.1 g 0.2 g | 0% 0% |
| Dietary fiber | 0.8 g 3.1 g | 3% 11% |
| Sugars | 1 g 3.9 g | Not established Not established |
| Sodium | 13 mg 52 mg | 1% 2% |
| Saturated fat | 0 g 0.1 g | 0% 0% |
| Monounsaturated Fat | 0 g 0.1 g | Not established Not established |
| Polyunsaturated Fat | 0 g 0.2 g | Not established Not established |
| Cholesterol | 0 mg 0 mg | 0% 0% |
| Potassium | 103.5 mg 414 mg | 2% 9% |
| Calcium | 12.3 mg 49 mg | 1% 4% |
| Iron | 0.2 mg 0.7 mg | 1% 4% |
| Magnesium | 4.3 mg 17 mg | 1% 4% |
| Vitamin C | 3 mg 12 mg | 3% 13% |
| Vitamin D | 0 µg 0 µg | 0% 0% |
| Vitamin A | 12 µg 48 µg | 1% 5% |
| Caffeine | 0 mg 0 mg | Not established Not established |
| Alcohol | 0 g 0 g | Not established Not established |
| Water | 22.6 g 90.2 g | Not established Not established |
For FDC 2709779, approximate percentages divide the displayed 25 g amount by FDA label Daily Values; they are not personalized targets. “Not established” means FDA sets no Daily Value for that row. Protein %DV remains unshown because adult-label use depends on regulatory context.
Inside the source record
Source formulation behind this USDA record
USDA links FDC 2709779 to one source input totaling 100 g in its standardized formulation. Publishing that exact provenance makes “Fennel bulb, raw” inspectable beside similarly named records.
How to read this
A single-source formulation
Fennel, bulb, raw is the only listed source input for this record. That does not mean every real-world version is identical; brands, preparation, water content, and portion weight can still differ.
100 g total listed input weight across the formulation.
| # | USDA input | Listed amount | Input weight | Share of listed input weight |
|---|---|---|---|---|
| 1 | Fennel, bulb, rawUSDA ingredient 11957 | 100 GM | 100 g | 100% |
Exact-record context
What makes this USDA record distinct?
For FDC 2709779, the close-record rule searches the USDA “Other vegetables and combinations” category for shared description terms or source inputs. Any surviving pair is compared per 100 grams, so unlike source-serving sizes cannot manufacture the nutrient difference.
This record
Fennel bulb, raw
- USDA category
- Other vegetables and combinations
- FDC ID
- 2709779
- FNDDS code
- 75109010
Closest inspectable record
Fennel bulb, cooked
- USDA category
- Other vegetables and combinations
- FDC ID
- 2709907
- FNDDS code
- 75215120
| Nutrient | This record | Comparison record | Difference |
|---|---|---|---|
| Calories | 31 kcal | 62 kcal | −31 kcal |
| Protein | 1.2 g | 1.4 g | −0.2 g |
| Carbohydrate | 7.3 g | 8.3 g | −1 g |
| Total fat | 0.2 g | 3.2 g | −3 g |
| Dietary fiber | 3.1 g | 3.5 g | −0.4 g |
| Sodium | 52 mg | 202 mg | −150 mg |
Plain-English read
At the fixed 100-gram basis, this record lists 31 less calories, 3 g less total fat, and 150 mg less sodium than “Fennel bulb, cooked.”
Only the comparison record lists Oil or table fat, NFS; Salt, table. Those formulation rows identify different source records; they do not prove which input caused a nutrient difference.
3 of the six displayed differences clear the documented materiality screen. It is a reading aid, not a health rating.
Formulation evidence
The listed formulations differ
The formulation rows differ, but the source data do not isolate which component caused any nutrient difference. Input weights describe the standardized formulation—not final plated proportions.
Shared listed inputs: Fennel, bulb, raw.
Listed only in the comparison: Oil or table fat, NFS; Salt, table.
Portion evidence
The listed portion sets differ
This record’s reference amount is 25 g; a familiar listed measure is 1 fennel bulb (235 g).
The comparison record’s reference amount is 78 g; a familiar listed measure is 1 fennel bulb (218 g).
Use the 100-gram row to compare FDC 2709779 with FDC 2709907 at equal mass; use their 25 g and 78 g source amounts only for portion matching.
Evidence boundary: FDC 2709779 versus FDC 2709907 is a comparison of standardized source records—not a measurement of your meal, an overall food-quality rank, or proof that one input caused a difference.
Review the full other vegetables and combinations source category → Read the calculation and selection methodology →
Deep comparisons
Controlled comparisons that include this exact record
FDC 2709779 appears in 1 pair page that passed semantic, material-difference, source-evidence, and diversity gates. Each preserves a 100-gram denominator and both primary records.
From record to familiar meal
Guides that use this exact USDA record
These 1 guide place “Fennel bulb, raw” beside explicitly linked source records; use them to compare preparations without turning FDC 2709779 into a universal recipe.
Uncertainty, made actionable
What can change this estimate?
This is a standardized USDA survey-food profile, not a measurement of every preparation. Actual nutrition can change with portion size, raw versus cooked weight, cooking method, added fat or sauce.
For “Fennel bulb, raw,” resolve portion size first, then move through the remaining 3 published levers. Unknowns should remain visible rather than expanding every assumption at once.
- 01
portion size
When composition is held constant, nutrient totals scale directly with grams. A 20% weight correction produces the same 20% correction to the scaled totals.
- 02
raw versus cooked weight
Match the food state before matching the number. Cooking, draining, or added liquid can change grams and concentration even when the food name barely changes.
- 03
cooking method
Match the method named by the source—such as baked, fried, boiled, or grilled—before scaling. Preparation can change both water content and the ingredients retained in the finished food.
- 04
added fat or sauce
Match the named cooking-fat state when possible. Fat used, retained, or left behind is preparation information that a dish name alone cannot recover.
How we estimated this
The arithmetic is simple; the provenance is the point
FDC 2709779 comes from FoodData Central Survey Foods (FNDDS). Its 31 kcal per 100 g becomes 8 kcal at 25 g through nutrient per portion = nutrient per 100 g × portion grams ÷ 100; this page adds no second nutrition estimate.
About the serving label: USDA describes the underlying survey portion as “Quantity not specified.” We display it as a USDA reference amount because it is a database comparison point—not a suggested portion or a claim about what most people should eat.
Data cycle: 2021–2023, published October 31, 2024
FoodData Central ID: 2709779
FNDDS food code: 75109010
The scaling for FDC 2709779 can be exact while the match to “Fennel bulb, raw” is wrong. That is why this profile keeps its 25 g weight, 1-row source formulation, and selection uncertainty beside the arithmetic.
Source release October 31, 2024. Review USDA’s data-type documentation ↗ · Read Feast’s full nutrition methodology.