Energy
middle half74 kcalthis record per 100 g
- Corpus median
- 101 kcal
- Middle 50%
- 69–280 kcal
Based on 137 records reporting energy.
Dairymoderate variability
Sour cream, fat free calories: 22 per 30 g
This exact USDA record reports 22 calories for 30 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 · 30 g
- Calories
- 22 kcal
- Protein
- 0.9 g
- Carbohydrate
- 4.7 g
- Total fat
- 0 g
- Fiber
- 0 g
- Sodium
- 42 mg
Portion calculator
Estimate your portion
Choose a source measure or enter the weight you ate.
Estimated for 30 g
22calories
Sour cream, fat free
- Protein
- 0.9 g
- Carbs
- 4.7 g
- Fat
- 0 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 22 calories for USDA reference amount at 30 grams. On a fixed-weight basis, the same record contains 74 calories per 100 grams. The first number answers a portion question; the second answers a concentration question.
Composition: that source amount also reports 0.9 g protein, 0 g fiber, and 42 mg sodium. Read those values together: a calorie total by itself cannot describe the nutrient profile.
Identity: the largest listed formulation input is sour cream, fat free, 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 tablespoon 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 11–178 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 2705616: “Sour cream, fat free.” 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 2705616, each row multiplies the published per-100-gram values by its stated weight. “1 tablespoon” through “1 cup” are weight scenarios: named measures come from USDA, while percentage labels are transparent arithmetic.
| Scenario | Weight | Energy | Protein | Fiber | Sodium |
|---|---|---|---|---|---|
| 1 tablespoonUSDA-listed household measure | 15 g | 11 kcal | 0.5 g | 0 g | 21 mg |
| USDA reference amountExact record reference weight | 30 g | 22 kcal | 0.9 g | 0 g | 42 mg |
| 1 cupUSDA-listed household measure | 240 g | 178 kcal | 7.4 g | 0 g | 338 mg |
02 · Fixed-weight context
Where 100 grams sits inside Dairy
The comparison set contains 137 exact records in Feast’s broader Dairy category. Here, “middle half” describes FDC 2705616’s energy position in that corpus—not nutritional quality, desirability, or a health rating.
Protein
lower quarter3.1 gthis record per 100 g
- Corpus median
- 4 g
- Middle 50%
- 3.1–16.8 g
Based on 137 records reporting protein.
Dietary fiber
middle half0 gthis record per 100 g
- Corpus median
- 0 g
- Middle 50%
- 0–0.1 g
Based on 137 records reporting dietary fiber.
Sodium
middle half141 mgthis record per 100 g
- Corpus median
- 60 mg
- Middle 50%
- 41–604 mg
Based on 137 records reporting sodium.
03 · FDA label lens
The strongest strength-side and tradeoff-side signals
At FDC 2705616’s 30 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
Sodium42 mg
≈ 2% DV. This does not cross the FDA’s 20% ‘high’ guide.
04 · Highest-impact checks
The three levers most worth resolving first
For “Sour cream, fat free,” the first-pass checks follow the evidence actually published: its named weights, the FDC 2705614 alternative, and its source-formulation identity.
- 01
Listed portion span: 1 tablespoon to 1 cup
USDA assigns those measures 15 g and 240 g. At this record’s fixed composition, scaled energy moves from 11 kcal to 178 kcal.
- 02
Record choice: compare with FDC 2705614
At an equal 100 g, this record has 18 g less total fat than “Sour cream, regular.” That is a record-level contrast; it does not identify which ingredient caused the difference.
- 03
Single listed source: Sour cream, fat free
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 “fat free” fits. Inspect FDC 2705614 when “regular” is the more literal description of the food and preparation.
Keep this profile when these fields fit
Sour cream, fat free
- Exact source wording
- “Sour cream, fat free”
- Source identity
- USDA FDC 2705616 · FNDDS 12310370
- Named qualifiers
- fat free
- Source inputs unique in this pair
- Sour cream, fat free
Inspect this alternative when its fields fit better
Sour cream, regular
- Exact source wording
- “Sour cream, regular”
- Source identity
- USDA FDC 2705614 · FNDDS 12310100
- Named qualifiers
- regular
- Source inputs unique in this pair
- Cream, sour, full fat
Choose the closest description
Which USDA record fits your meal?
Treat the long description as data. The phrases doing the most work here are “fat free”. 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 recordSour cream, fat free | 30 g22 kcal | 74 kcal | 3.1 g | 0 g | 0 g | 141 mg |
| Sour cream, light | 30 g41 kcal | 136 kcal | 3.5 g | 10.6 g | 0 g | 83 mg |
| Sour cream, regular | 30 g59 kcal | 196 kcal | 3.1 g | 18 g | 0 g | 50 mg |
| Sour cream, imitation | 30 g62 kcal | 208 kcal | 2.4 g | 19.5 g | 0 g | 102 mg |
| Cream cheese, regular, flavored | 30 g83 kcal | 275 kcal | 8.2 g | 20.6 g | 0 g | 574 mg |
| Cream cheese, regular, plain | 30 g103 kcal | 343 kcal | 5.8 g | 33.5 g | 0 g | 368 mg |
How to compare FDC 2705616: its source amount is 30 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 2705616, the 2 displayed measures scale the same source composition by gram weight; rounding changes presentation, not the underlying ratio.
1 tablespoon
11 kcal
15 g
1 cup
178 kcal
240 g
At a glance
Nutrient signals in the source amount
For FDC 2705616, Calcium is the largest displayed non-protein Daily Value signal. Read the set as label context—not a personalized score.
Calcium
37.5 mg≈ 3% Daily ValueVitamin A
21.9 µg≈ 2% Daily ValueThe percentages above apply to FDC 2705616’s 30 g reference amount. FDA Daily Values are general label references, not individualized energy or medical targets. Read the FDA explanation ↗
Why FDC 2705616 has no protein percentage here: Feast reports 0.9 g, but does not present grams divided by 50 as FDA protein %DV; applicable label rules account for protein quality and regulatory context.
Nutrition facts
Compare the source serving with 100 grams
Values are rounded for readability. The source serving is 30 g.
| Nutrient | Amount | Approx. % Daily Value |
|---|---|---|
| Calories | 22 kcal 74 kcal | Not established Not established |
| Protein | 0.9 g 3.1 g | Not shown Not shown |
| Carbohydrate | 4.7 g 15.6 g | 2% 6% |
| Total fat | 0 g 0 g | 0% 0% |
| Dietary fiber | 0 g 0 g | 0% 0% |
| Sugars | 0.1 g 0.4 g | Not established Not established |
| Sodium | 42.3 mg 141 mg | 2% 6% |
| Saturated fat | 0 g 0 g | 0% 0% |
| Monounsaturated Fat | 0 g 0 g | Not established Not established |
| Polyunsaturated Fat | 0 g 0 g | Not established Not established |
| Cholesterol | 2.7 mg 9 mg | 1% 3% |
| Potassium | 38.7 mg 129 mg | 1% 3% |
| Calcium | 37.5 mg 125 mg | 3% 10% |
| Iron | 0 mg 0 mg | 0% 0% |
| Magnesium | 3 mg 10 mg | 1% 2% |
| Vitamin C | 0 mg 0 mg | 0% 0% |
| Vitamin D | 0 µg 0 µg | 0% 0% |
| Vitamin A | 21.9 µg 73 µg | 2% 8% |
| Caffeine | 0 mg 0 mg | Not established Not established |
| Alcohol | 0 g 0 g | Not established Not established |
| Water | 24.2 g 80.6 g | Not established Not established |
For FDC 2705616, approximate percentages divide the displayed 30 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 2705616 to one source input totaling 100 g in its standardized formulation. Publishing that exact provenance makes “Sour cream, fat free” inspectable beside similarly named records.
How to read this
A single-source formulation
Sour cream, fat free 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 | Sour cream, fat freeUSDA ingredient 1180 | 100 GM | 100 g | 100% |
Exact-record context
What makes this USDA record distinct?
For FDC 2705616, the close-record rule searches the USDA “Cream cheese, sour cream, whipped cream” 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
Sour cream, fat free
- USDA category
- Cream cheese, sour cream, whipped cream
- FDC ID
- 2705616
- FNDDS code
- 12310370
Closest inspectable record
Sour cream, regular
- USDA category
- Cream cheese, sour cream, whipped cream
- FDC ID
- 2705614
- FNDDS code
- 12310100
| Nutrient | This record | Comparison record | Difference |
|---|---|---|---|
| Calories | 74 kcal | 196 kcal | −122 kcal |
| Protein | 3.1 g | 3.1 g | +0 g |
| Carbohydrate | 15.6 g | 5.6 g | +10 g |
| Total fat | 0 g | 18 g | −18 g |
| Dietary fiber | 0 g | 0 g | Same listed value |
| Sodium | 141 mg | 50 mg | +91 mg |
Plain-English read
At the fixed 100-gram basis, this record lists 122 less calories, 10 g more carbohydrate, and 18 g less total fat than “Sour cream, regular.”
Only this record lists Sour cream, fat free. Only the comparison record lists Cream, sour, full fat. Those formulation rows identify different source records; they do not prove which input caused a nutrient difference.
4 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.
Listed only in this record: Sour cream, fat free.
Listed only in the comparison: Cream, sour, full fat.
Portion evidence
The listed portion sets differ
This record’s reference amount is 30 g; a familiar listed measure is 1 tablespoon (15 g).
The comparison record’s reference amount is 30 g; a familiar listed measure is 1 individual container (30 g).
Use the 100-gram row to compare FDC 2705616 with FDC 2705614 at equal mass; use their 30 g and 30 g source amounts only for portion matching.
Evidence boundary: FDC 2705616 versus FDC 2705614 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.
Deep comparisons
Controlled comparisons that include this exact record
FDC 2705616 appears in 2 pair pages 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 “Sour cream, fat free” beside explicitly linked source records; use them to compare preparations without turning FDC 2705616 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, fat level, brand or formulation, added flavors or sweeteners.
For “Sour cream, fat free,” 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
fat level
Match the named cooking-fat state when possible. Fat used, retained, or left behind is preparation information that a dish name alone cannot recover.
- 03
brand or formulation
Prefer a package, menu, or known recipe when it identifies the food more precisely. Otherwise preserve the generic record as an explicit approximation.
- 04
added flavors or sweeteners
Use a label or known recipe when available, because sweetness does not reveal dose. Keep syrups, sugars, and concentrated add-ins separate when the base record does not name them.
How we estimated this
The arithmetic is simple; the provenance is the point
FDC 2705616 comes from FoodData Central Survey Foods (FNDDS). Its 74 kcal per 100 g becomes 22 kcal at 30 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: 2705616
FNDDS food code: 12310370
The scaling for FDC 2705616 can be exact while the match to “Sour cream, fat free” is wrong. That is why this profile keeps its 30 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.