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Portions and preparation · USDA nutrition

Oysters calories per cup: 88–274 across all 5 named USDA examples

Across all 5 named USDA examples, a cup contains 88–274 calories. Their listed weights span 135–225 g, so each calorie value is calculated from that example's own gram weight and published calories per 100 g.

Portion calculator

Estimate your portion

Choose a source measure or enter the weight you ate.

Preparation and portion

Named measures come from this exact source record.

Estimated for 85 g

88calories

Oysters, baked or broiled

Protein
6 g
Carbs
2.9 g
Fat
5.7 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 2706352 Full nutrition profile →

Compare all 5 food records, nutrition tables and USDA sources

The 5 exact records in this guide report 43–173 calories in the records' own listed source servings and 51–203 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 Oysters, begin by separating “Oysters, baked or broiled” from “Oysters, steamed.” 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 5 linked records.

Equal-weight view

How oysters records compare at 100 grams

All 5 cited records are shown at the same 100-gram weight. The source servings may differ.

  1. Oysters, raw 51 kcal
    51 kcal
  2. Oysters, steamed 65 kcal
    65 kcal
  3. Oysters, canned 74 kcal
    74 kcal
  4. Oysters, baked or broiled 104 kcal
    104 kcal
  5. Oysters, fried 203 kcal
    203 kcal

Shared basis: 100 g · kilocalories

What this page compares

Named source records, not one universal meal

This guide keeps 5 named USDA records in view: 5 direct matches. All sit within “Shellfish.” 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 5 records together under the exact grouping key “oysters.” That rule determines membership before any nutrition result is read.

For Oysters, this page can compare 5 named records from FDC 2706352 through FDC 2706353. 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 85 g comparison anchor

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

Composition

152 kcal separates the fixed-weight endpoints

The lower endpoint is “raw”; the higher is “fried.” This isolates density, not ingredient causation.

Discriminator

323 mg sodium gap per 100 g

Of protein, fiber, and sodium, the strongest normalized contrast is between “raw” (85 mg) and “fried” (408 mg).

Observed source examples

Three landmarks inside this source set—not universal endpoints

These 5 records each use a 85 g serving. Their serving calories compare equal weights within this set. They do not define a calorie range for every oysters; match the preparation and adjust to your portion.

Important: “Lower” begins with Oysters, raw; “higher” ends with Oysters, fried, using each record’s own source amount. Those labels order this selected set only—they are not endpoints for every oysters meal.

Full comparison

Compare every selected FNDDS record

For Oysters, 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 Oysters nutrition guide
Exact source record Match Source amount Calories kcal / 100 g Protein Fiber Sodium USDA
Oysters, baked or broiled Direct name match 85 gUSDA reference amount 88 kcal 104 6 g 0 g 273 mg FDC 2706352 ↗
Oysters, canned Direct name match 85 gUSDA reference amount 63 kcal 74 6.5 g 0 g 104 mg FDC 2706355 ↗
Oysters, fried Direct name match 85 gUSDA reference amount 173 kcal 203 5.3 g 0.4 g 347 mg FDC 2706354 ↗
Oysters, raw Direct name match 85 gUSDA reference amount 43 kcal 51 4.9 g 0 g 72 mg FDC 2706351 ↗
Oysters, steamed Direct name match 85 gUSDA reference amount 55 kcal 65 6.1 g 0 g 92 mg FDC 2706353 ↗

Portion analysis

Serving total and calorie density answer different questions

Every selected record uses a 85-gram source amount, so serving-weight differences do not explain the calorie spread inside this set. Their own source servings run from 43 calories for “raw” to 173 for “fried.” At a fixed 100 grams, “raw” is 51 calories and “fried” is 203—a fixed-weight separation of 152 calories. For Oysters, 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 “baked or broiled”, “canned”, “fried”, “raw”, and “steamed”. The source formulations contain 6 distinct ingredient codes; examples that appear in only part of the set include mollusks, oyster, eastern, wild, raw, salt, table, breading or batter as ingredient in food, and mollusks, oyster, eastern, canned. On this Oysters 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 “Oysters” cannot resolve the differences between Oysters, baked or broiled and Oysters, steamed. 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 85 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 “baked or broiled”, “canned”, “fried”, “raw”, and “steamed”. Those phrases are evidence for choosing a record, not decorative subtitle text.

  3. 03

    Formulation evidence, with limits

    6 source-input codes appear across the selected records. Their presence and listed weights describe USDA formulations, not finished plated proportions.

  4. 04

    The unresolved plate

    Even “Oysters, baked or broiled” leaves the eaten grams and unnamed oils, sauces, toppings, substitutions, or leftovers unresolved. Preserve those Oysters 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 oysters is the right meal family. Then resolve the phrases that actually separate this set—“baked or broiled”, “canned”, “raw”, and “steamed”—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 Oysters 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 5 exact records behind Oysters 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

Oysters, fried is higher in total fat per 100 g

Oysters, fried reports 13.5 g versus 1.7 g for Oysters, raw: a 11.8 g difference when both are normalized to 100 g.

Inspect the underlying evidence

These listed servings have equal weights

5 listed servings each weigh 85 g

The 5 records with a listed serving weight on this page each use 85 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.

Choose the record before reading the number

Oysters, canned and Oysters, fried are not interchangeable

The page keeps both records at the same 100 g denominator and makes Preparation wording (No matching controlled term in the source name versus fried) the explicit record-description contrast. It does not show that the wording difference caused a nutrient difference. Pick the description that matches the food in front of you rather than averaging away the distinction.

Inspect the underlying evidence

Contextual knowledge graph

Follow the relationship that matches your question

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

Compare two records on this page Oysters, canned vs Oysters, fried

Both records appear in this page’s evidence set. The explicit record-description contrast is Preparation wording: No matching controlled term in the source name versus fried; it is a selection cue, not evidence of cause.

Follow this evidence path Compare two records on this page Oysters, baked or broiled vs Oysters, canned

Both records appear in this page’s evidence set. The explicit record-description contrast is Preparation wording: baked, roasted, or broiled versus No matching controlled term in the source name; it is a selection cue, not evidence of cause.

Follow this evidence path 5 context records in this source topic Shellfish

Oysters, baked or broiled and Oysters, canned 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 A formulation detail that separates records Mollusks, oyster, eastern, wild, raw

USDA input 15167 appears in 4 of 5 context records; its summed listed input weight spans 65–100 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 Salt, table

USDA input 2047 appears in 2 of 5 context records; its summed listed input weight spans 0.4–0.6 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 85 mg in Oysters, raw to 408 mg in Oysters, fried, all per 100 g.

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

In this page’s records, calories runs from 51 kcal in Oysters, raw to 203 kcal in Oysters, fried, all per 100 g.

Follow this evidence path