Energy
lower quarter520 kcalthis record per 100 g
- Corpus median
- 589 kcal
- Middle 50%
- 572–624 kcal
Based on 68 records reporting energy.
Beans, nuts & protein foodsmoderate variability
Peanut butter, reduced fat calories: 166 per 32 g
This exact USDA record reports 166 calories for 32 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 · 32 g
- Calories
- 166 kcal
- Protein
- 8.3 g
- Carbohydrate
- 11.4 g
- Total fat
- 10.9 g
- Fiber
- 1.7 g
- Sodium
- 173 mg
Portion calculator
Estimate your portion
Choose a source measure or enter the weight you ate.
Estimated for 32 g
166calories
Peanut butter, reduced fat
- Protein
- 8.3 g
- Carbs
- 11.4 g
- Fat
- 10.9 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 166 calories for USDA reference amount at 32 grams. On a fixed-weight basis, the same record contains 520 calories per 100 grams. The first number answers a portion question; the second answers a concentration question.
Composition: that source amount also reports 8.3 g protein, 1.7 g fiber, and 173 mg sodium. Read those values together: a calorie total by itself cannot describe the nutrient profile.
Identity: the largest listed formulation input is peanut butter, smooth, reduced fat, 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 83–166 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 2707541: “Peanut butter, reduced fat.” 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 2707541, each row multiplies the published per-100-gram values by its stated weight. “1 tablespoon” through “USDA reference amount” 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 | 16 g | 83 kcal | 4.1 g | 0.8 g | 86 mg |
| 75% of the reference weightArithmetic scenario from the reference weight | 24 g | 125 kcal | 6.2 g | 1.2 g | 130 mg |
| USDA reference amountExact record reference weight | 32 g | 166 kcal | 8.3 g | 1.7 g | 173 mg |
02 · Fixed-weight context
Where 100 grams sits inside Nuts and seeds
The comparison set contains 68 exact records in the Nuts and seeds USDA category. Here, “lower quarter” describes FDC 2707541’s energy position in that corpus—not nutritional quality, desirability, or a health rating.
Protein
upper quarter25.9 gthis record per 100 g
- Corpus median
- 18.8 g
- Middle 50%
- 13.4–20.7 g
Based on 68 records reporting protein.
Dietary fiber
lower quarter5.2 gthis record per 100 g
- Corpus median
- 7.4 g
- Middle 50%
- 5.5–9.7 g
Based on 68 records reporting dietary fiber.
Sodium
upper quarter540 mgthis record per 100 g
- Corpus median
- 197 mg
- Middle 50%
- 7–383 mg
Based on 68 records reporting sodium.
03 · FDA label lens
The strongest strength-side and tradeoff-side signals
At FDC 2707541’s 32 g reference weight, the largest strength-side percentage among the nutrients evaluated here is Magnesium; the larger tradeoff-side percentage is Saturated fat. 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
Magnesium54 mg
≈ 13% DV. This does not cross the FDA’s 20% ‘high’ guide.
Dietary fiber1.7 g
≈ 6% DV. This does not cross the FDA’s 20% ‘high’ guide.
Tradeoff-side signals
Saturated fat1.8 g
≈ 9% DV. This does not cross the FDA’s 20% ‘high’ guide.
Sodium173 mg
≈ 8% DV. This does not cross the FDA’s 20% ‘high’ guide.
04 · Highest-impact checks
The three levers most worth resolving first
For “Peanut butter, reduced fat,” the first-pass checks follow the evidence actually published: its named weights, the FDC 2707537 alternative, and its source-formulation identity.
- 01
Portion sensitivity around 32 g
A 25% weight move in either direction spans 24–40 g. When composition is held constant, those endpoints calculate to 125 kcal and 208 kcal.
- 02
Record choice: compare with FDC 2707537
At an equal 100 g, this record has 13.3 g more carbohydrate than “Peanut butter.” That is a record-level contrast; it does not identify which ingredient caused the difference.
- 03
Single listed source: Peanut butter, smooth, reduced fat
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 “reduced fat” fits. Inspect FDC 2707537 when the exact wording “Peanut butter” is the more literal description of the food and preparation.
Keep this profile when these fields fit
Peanut butter, reduced fat
- Exact source wording
- “Peanut butter, reduced fat”
- Source identity
- USDA FDC 2707541 · FNDDS 42202150
- Named qualifiers
- reduced fat
- Source inputs unique in this pair
- Peanut butter, smooth, reduced fat
Inspect this alternative when its fields fit better
Peanut butter
- Exact source wording
- “Peanut butter”
- Source identity
- USDA FDC 2707537 · FNDDS 42202000
- Source inputs unique in this pair
- Peanut butter, smooth style, with salt (Includes foods for USDA's Food Distribution Program)
Choose the closest description
Which USDA record fits your meal?
Treat the long description as data. The phrases doing the most work here are “reduced fat”. 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 recordPeanut butter, reduced fat | 32 g166 kcal | 520 kcal | 25.9 g | 34 g | 5.2 g | 540 mg |
| Peanut butter | 32 g191 kcal | 598 kcal | 22.2 g | 51.4 g | 5 g | 426 mg |
| Peanut butter and jelly | 32 g138 kcal | 432 kcal | 11.2 g | 25.7 g | 3 g | 228 mg |
| Peanut butter and chocolate spread | 32 g159 kcal | 498 kcal | 11.7 g | 34.5 g | 3 g | 304 mg |
| Peanut butter, lower sodium | 32 g191 kcal | 598 kcal | 22.2 g | 51.4 g | 5 g | 17 mg |
| Peanut butter, lower sugar | 32 g208 kcal | 650 kcal | 24.8 g | 54.9 g | 7.8 g | 292 mg |
| Peanut butter, vitamin and mineral fortified | 32 g189 kcal | 591 kcal | 25.7 g | 50.8 g | 5.6 g | 420 mg |
How to compare FDC 2707541: its source amount is 32 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 2707541, the 1 displayed measure scale the same source composition by gram weight; rounding changes presentation, not the underlying ratio.
1 tablespoon
83 kcal
16 g
At a glance
Nutrient signals in the source amount
For FDC 2707541, Total fat is the largest displayed non-protein Daily Value signal. Read the set as label context—not a personalized score.
Total fat
10.9 g≈ 14% Daily ValueMagnesium
54.4 mg≈ 13% Daily ValueThe percentages above apply to FDC 2707541’s 32 g reference amount. FDA Daily Values are general label references, not individualized energy or medical targets. Read the FDA explanation ↗
Why FDC 2707541 has no protein percentage here: Feast reports 8.3 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 32 g.
| Nutrient | Amount | Approx. % Daily Value |
|---|---|---|
| Calories | 166 kcal 520 kcal | Not established Not established |
| Protein | 8.3 g 25.9 g | Not shown Not shown |
| Carbohydrate | 11.4 g 35.6 g | 4% 13% |
| Total fat | 10.9 g 34 g | 14% 44% |
| Dietary fiber | 1.7 g 5.2 g | 6% 19% |
| Sugars | 3 g 9.3 g | Not established Not established |
| Sodium | 172.8 mg 540 mg | 8% 23% |
| Saturated fat | 1.8 g 5.8 g | 9% 29% |
| Monounsaturated Fat | 5.2 g 16.2 g | Not established Not established |
| Polyunsaturated Fat | 2.9 g 9.2 g | Not established Not established |
| Cholesterol | 0 mg 0 mg | 0% 0% |
| Potassium | 214.1 mg 669 mg | 5% 14% |
| Calcium | 11.2 mg 35 mg | 1% 3% |
| Iron | 0.6 mg 1.9 mg | 3% 11% |
| Magnesium | 54.4 mg 170 mg | 13% 40% |
| Vitamin C | 0 mg 0 mg | 0% 0% |
| Vitamin D | 0 µg 0 µg | 0% 0% |
| Vitamin A | 0 µg 0 µg | 0% 0% |
| Caffeine | 0 mg 0 mg | Not established Not established |
| Alcohol | 0 g 0 g | Not established Not established |
| Water | 0.4 g 1.2 g | Not established Not established |
For FDC 2707541, approximate percentages divide the displayed 32 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 2707541 to one source input totaling 100 g in its standardized formulation. Publishing that exact provenance makes “Peanut butter, reduced fat” inspectable beside similarly named records.
How to read this
A single-source formulation
Peanut butter, smooth, reduced fat 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 | Peanut butter, smooth, reduced fatUSDA ingredient 16150 · encyclopedia page available | 100 GM | 100 g | 100% |
Exact-record context
What makes this USDA record distinct?
For FDC 2707541, the close-record rule searches the USDA “Nuts and seeds” 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
Peanut butter, reduced fat
- USDA category
- Nuts and seeds
- FDC ID
- 2707541
- FNDDS code
- 42202150
Closest inspectable record
Peanut butter
- USDA category
- Nuts and seeds
- FDC ID
- 2707537
- FNDDS code
- 42202000
| Nutrient | This record | Comparison record | Difference |
|---|---|---|---|
| Calories | 520 kcal | 598 kcal | −78 kcal |
| Protein | 25.9 g | 22.2 g | +3.7 g |
| Carbohydrate | 35.6 g | 22.3 g | +13.3 g |
| Total fat | 34 g | 51.4 g | −17.4 g |
| Dietary fiber | 5.2 g | 5 g | +0.2 g |
| Sodium | 540 mg | 426 mg | +114 mg |
Plain-English read
At the fixed 100-gram basis, this record lists 78 less calories, 3.7 g more protein, and 13.3 g more carbohydrate than “Peanut butter.”
Only this record lists Peanut butter, smooth, reduced fat. Only the comparison record lists Peanut butter, smooth style, with salt (Includes foods for USDA's Food Distribution Program). Those formulation rows identify different source records; they do not prove which input caused a nutrient difference.
5 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: Peanut butter, smooth, reduced fat.
Listed only in the comparison: Peanut butter, smooth style, with salt (Includes foods for USDA's Food Distribution Program).
Portion evidence
The listed portion sets differ
This record’s reference amount is 32 g; a familiar listed measure is 1 tablespoon (16 g).
The comparison record’s reference amount is 32 g; a familiar listed measure is 1 tablespoon (16 g).
Use the 100-gram row to compare FDC 2707541 with FDC 2707537 at equal mass; use their 32 g and 32 g source amounts only for portion matching.
Evidence boundary: FDC 2707541 versus FDC 2707537 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 nuts and seeds source category → Read the calculation and selection methodology →
Deep comparisons
Controlled comparisons that include this exact record
FDC 2707541 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 “Peanut butter, reduced fat” beside explicitly linked source records; use them to compare preparations without turning FDC 2707541 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, preparation, added fat, sauce or seasoning.
For “Peanut butter, reduced fat,” 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
preparation
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.
- 03
added fat
Match the named cooking-fat state when possible. Fat used, retained, or left behind is preparation information that a dish name alone cannot recover.
- 04
sauce or seasoning
Check whether the exact source description already includes it. If not, keep the addition separate rather than silently folding it into the base record.
How we estimated this
The arithmetic is simple; the provenance is the point
FDC 2707541 comes from FoodData Central Survey Foods (FNDDS). Its 520 kcal per 100 g becomes 166 kcal at 32 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: 2707541
FNDDS food code: 42202150
The scaling for FDC 2707541 can be exact while the match to “Peanut butter, reduced fat” is wrong. That is why this profile keeps its 32 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.