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Portions and preparation · USDA nutrition

Walnuts calories per cup: 802–876 across all 2 named USDA examples

Across all 2 named USDA examples, a cup contains 802–876 calories. Each included example lists 120 g for that measure. The same household label can carry a different gram weight elsewhere in USDA data.

Portion calculator

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Preparation and portion

Named measures come from this exact source record.

Estimated for 28 g

204calories

Walnuts, excluding honey roasted

Protein
4.1 g
Carbs
3.1 g
Fat
19.5 g

These values scale the selected reference food by weight. Ingredients, preparation, and portion size can change your meal’s estimate.

FoodData Central Survey Foods (FNDDS) · FDC 2707531 Full nutrition profile →

Compare all 2 food records, nutrition tables and USDA sources

The 2 exact records in this guide report 187–204 calories in the records' own listed source servings and 668–730 calories per 100 grams. Those are observations from named database records—not a universal range or an estimate of an unseen plate.

Match my meal

Start with the description closest to what you ate

For Walnuts, begin by separating “Walnuts, excluding honey roasted” from “Walnuts, honey roasted.” Choosing a card filters this source set; it does not infer the portion or fill in ingredients the chosen description does not name.

Showing all 2 linked records.

Equal-weight view

How walnuts records compare at 100 grams

All 2 cited records are shown at the same 100-gram weight. The source servings may differ.

  1. Walnuts, honey roasted 668 kcal
    668 kcal
  2. Walnuts, excluding honey roasted 730 kcal
    730 kcal

Shared basis: 100 g · kilocalories

What this page compares

Named source records, not one universal meal

This guide keeps 2 named USDA records in view: 2 direct matches. All sit within “Nuts and seeds.” The exact descriptions remain the unit of comparison; the familiar heading is only the doorway into the evidence.

Why these records appear together: The deterministic grouping rule “normalized first description segment” placed these 2 records together under the exact grouping key “walnuts.” That rule determines membership before any nutrition result is read.

For Walnuts, this page can compare 2 named records from FDC 2707531 through FDC 2707532. It cannot observe which preparation was eaten, recover unnamed additions, or supply the eaten grams.

Read the shared calculation, provenance, and uncertainty method →

Editor’s decision brief

The three facts to carry into the table

Carry the denominator, exact identity, and strongest observed contrast into every number below.

Portion

A shared 28 g comparison anchor

Equal source weights make the selected Walnuts serving totals easier to compare, but the eaten portion still has to be measured or estimated.

Composition

62 kcal separates the fixed-weight endpoints

The lower endpoint is “honey roasted”; the higher is “excluding honey roasted.” This isolates density, not ingredient causation.

Discriminator

383 mg sodium gap per 100 g

Of protein, fiber, and sodium, the strongest normalized contrast is between “excluding honey roasted” (0 mg) and “honey roasted” (383 mg).

Observed source examples

Both records, with their own serving weights intact

These 2 records each use a 28 g serving. Their serving calories compare equal weights within this set. They do not define a calorie range for every walnuts; match the preparation and adjust to your portion.

Important: “Lower” begins with Walnuts, honey roasted; “higher” ends with Walnuts, excluding honey roasted, using each record’s own source amount. Those labels order this selected set only—they are not endpoints for every walnuts meal.

Full comparison

Compare every selected FNDDS record

For Walnuts, serving columns preserve each record’s own listed amount, while calories per 100 g hold weight constant. A dash means the cited record does not supply that field; it does not mean the nutrient is absent.

On smaller screens, focus the table and scroll horizontally to read every column.

USDA records selected for the Walnuts nutrition guide
Exact source record Match Source amount Calories kcal / 100 g Protein Fiber Sodium USDA
Walnuts, excluding honey roasted Direct name match 28 gUSDA reference amount 204 kcal 730 4.1 g 1.5 g 0 mg FDC 2707531 ↗
Walnuts, honey roasted Direct name match 28 gUSDA reference amount 187 kcal 668 2.7 g 1 g 107 mg FDC 2707532 ↗

Portion analysis

Serving total and calorie density answer different questions

Every selected record uses a 28-gram source amount, so serving-weight differences do not explain the calorie spread inside this set. Their own source servings run from 187 calories for “honey roasted” to 204 for “excluding honey roasted.” At a fixed 100 grams, “honey roasted” is 668 calories and “excluding honey roasted” is 730—a fixed-weight separation of 62 calories. For Walnuts, the serving view answers “how much is in the database portion?”; the 100-gram view answers “how concentrated is the matched record?” Neither reveals how many grams were actually eaten.

The scaling rule: multiply a per-100-gram value by eaten grams ÷ 100. The arithmetic is exact; the result is only as defensible as the record match and portion estimate.

Preparation analysis

The long description carries the evidence

The published descriptions distinguish forms such as “excluding honey roasted” and “honey roasted”. Across the source formulations, the shared backbone includes nuts, walnuts, english, halves, raw; differentiating rows include salt, table, sugars, granulated, and vegetable oil, nfs. On this Walnuts page, those rows make the records inspectable, but they are not a controlled experiment: they cannot tell us that one named input, by itself, caused a nutrient difference.

Database precision is not meal certainty. Retain the exact description beside the number so later corrections remain possible.

What changes the comparison

Four drivers worth checking before choosing a record

The family label “Walnuts” cannot resolve the differences between Walnuts, excluding honey roasted and Walnuts, honey roasted. The four checks below identify the record wording, source weight, and formulation evidence that can.

  1. 01

    A shared source weight

    Every selected record uses 28 grams. Inside this set, serving-calorie differences therefore reflect the published composition rather than a change in source weight.

  2. 02

    The words that split the family

    Representative record-level distinctions include “excluding honey roasted” and “honey roasted”. Those phrases are evidence for choosing a record, not decorative subtitle text.

  3. 03

    Formulation evidence, with limits

    Shared source rows include nuts, walnuts, english, halves, raw; rows that vary across the set include salt, table, sugars, granulated, and vegetable oil, nfs. Presence is inspectable evidence, not proof of nutrient causation.

  4. 04

    The unresolved plate

    Even “Walnuts, excluding honey roasted” leaves the eaten grams and unnamed oils, sauces, toppings, substitutions, or leftovers unresolved. Preserve those Walnuts unknowns for correction instead of converting them into false precision.

Record matching

Match identity first; scale quantity second

Read the source name as a sequence of decisions. First confirm that walnuts is the right meal family. Then resolve the phrases that actually separate this set—“excluding honey roasted” and “honey roasted”—before comparing gram weight. If a package, menu, or known recipe provides a closer first-party description, prefer it and keep this USDA record as a transparent fallback.

A practical matching checklist

  1. Read the complete Walnuts source description, including preparation and additions.
  2. Compare the listed source weight with the amount actually eaten.
  3. Prefer a current package or restaurant source when a specific branded item is known.
  4. Record toppings, sauces, cooking fat, sides, and substitutions that the selected description does not name.

Decision support from the exact records on this page

Turn source data into a better next decision

These conclusions and reading paths are computed from 2 exact records behind Walnuts source-record guide. Links are chosen by record identity, controlled contrast, formulation input, nutrient spread, or serving context—not by loose keyword similarity.

Equal-weight result

Walnuts, honey roasted is higher in sodium per 100 g

Walnuts, honey roasted reports 383 mg versus 0 mg for Walnuts, excluding honey roasted: a 383 mg difference when both are normalized to 100 g.

Inspect the underlying evidence

These listed servings have equal weights

2 listed servings each weigh 28 g

The 2 records with a listed serving weight on this page each use 28 g. Their serving totals therefore compare equal weights, even if the household labels differ. Match the preparation and adjust the weight to the amount you eat.

Record identity is part of the estimate

Distinguish “Walnuts, excluding honey roasted” from “Walnuts, honey roasted”

These are separate USDA records with separate formulations or survey descriptions. Match preparation, additions, and the named household amount before borrowing either record’s nutrients.

Inspect the underlying evidence

Contextual knowledge graph

Follow the relationship that matches your question

For Walnuts source-record guide, each path states why the destination belongs here, so you can distinguish a true evidentiary connection from a merely similar label.

A formulation detail that separates records Salt, table

USDA input 2047 appears in 1 of 2 context records; its summed listed input weight spans 1–1 g across those source formulations. These are source-formulation input weights, not plated or serving weights. Follow the code to inspect every represented occurrence.

Follow this evidence path A formulation detail that separates records Sugars, granulated

USDA input 19335 appears in 1 of 2 context records; its summed listed input weight spans 22–22 g across those source formulations. These are source-formulation input weights, not plated or serving weights. Follow the code to inspect every represented occurrence.

Follow this evidence path Put the observed spread in corpus context Sodium: density and serving context

In this page’s records, sodium runs from 0 mg in Walnuts, excluding honey roasted to 383 mg in Walnuts, honey roasted, all per 100 g.

Follow this evidence path 2 context records in this source topic Nuts and seeds

Walnuts, excluding honey roasted and Walnuts, honey roasted belong to this USDA source-category collection. Its displayed ranges and complete exact-record catalog provide the peer set for a manual comparison; the destination does not preselect this page’s record.

Follow this evidence path Inspect an exact record Walnuts, excluding honey roasted

Open the full nutrient table, household measures, formulation inputs, and FoodData Central 2707531 citation for this exact record—not a name-level average.

Follow this evidence path Check another exact record Walnuts, honey roasted

Open the full nutrient table, household measures, formulation inputs, and FoodData Central 2707532 citation for this exact record—not a name-level average.

Follow this evidence path Put the observed spread in corpus context Protein: density and serving context

In this page’s records, protein runs from 9.8 g in Walnuts, honey roasted to 14.6 g in Walnuts, excluding honey roasted, all per 100 g.

Follow this evidence path