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Portions and preparation · USDA nutrition

Taco shell calories per medium: 133–230 across all 2 named USDA examples

Across all 2 named USDA examples, a medium contains 133–230 calories. Their listed weights span 28–45 g, so each calorie value is calculated from that example's own gram weight and published calories per 100 g.

Portion calculator

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Preparation and portion

Named measures come from this exact source record.

Estimated for 54 g

257calories

Taco shell, corn

Protein
3.5 g
Carbs
34.3 g
Fat
11.8 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 2707826 Full nutrition profile →

Compare all 2 food records, nutrition tables and USDA sources

The 2 exact records in this guide report 230–257 calories in the records' own listed source servings and 476–511 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 Taco shell, begin by separating “Taco shell, corn” from “Taco shell, flour.” 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 taco shell records compare at 100 grams

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

  1. Taco shell, corn 476 kcal
    476 kcal
  2. Taco shell, flour 511 kcal
    511 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 “Tortillas.” 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 “taco shell.” That rule determines membership before any nutrition result is read.

For Taco shell, this page can compare 2 named records from FDC 2707826 through FDC 2707827. 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

45–54 g before composition

The largest source amount is 1.2× the smallest. Read per-serving calorie differences with that mass gap in view.

Composition

35 kcal separates the fixed-weight endpoints

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

Discriminator

431 mg sodium gap per 100 g

Of protein, fiber, and sodium, the strongest normalized contrast is between “corn” (324 mg) and “flour” (755 mg).

Observed source examples

Both records, with their own serving weights intact

The cards are ordered by calories in each record's listed serving. Serving weights differ, so use per-100-gram values to compare composition. These selected records do not define a calorie range for every taco shell.

Important: “Lower” begins with Taco shell, flour; “higher” ends with Taco shell, corn, using each record’s own source amount. Those labels order this selected set only—they are not endpoints for every taco shell meal.

Full comparison

Compare every selected FNDDS record

For Taco shell, 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 Taco shell nutrition guide
Exact source record Match Source amount Calories kcal / 100 g Protein Fiber Sodium USDA
Taco shell, corn Direct name match 54 gUSDA reference amount 257 kcal 476 3.5 g 3.6 g 175 mg FDC 2707826 ↗
Taco shell, flour Direct name match 45 gUSDA reference amount 230 kcal 511 4 g 1.7 g 340 mg FDC 2707827 ↗

Portion analysis

Serving total and calorie density answer different questions

The listed source amounts run from 45 to 54 grams—a 9-gram gap before composition enters the comparison. Their own source servings run from 230 calories for “flour” to 257 for “corn.” At a fixed 100 grams, “corn” is 476 calories and “flour” is 511—a fixed-weight separation of 35 calories. For Taco shell, 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 “corn” and “flour”. The source formulations contain 3 distinct ingredient codes; examples that appear in only part of the set include shortening, vegetable, household, composite, taco shells, baked, and tortillas, ready-to-bake or -fry, flour, refrigerated. On this Taco shell 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 “Taco shell” cannot resolve the differences between Taco shell, corn and Taco shell, flour. The four checks below identify the record wording, source weight, and formulation evidence that can.

  1. 01

    Source weight before serving calories

    The source amounts span 45–54 grams. Compare per 100 grams before reading a serving-calorie gap as a composition gap.

  2. 02

    The words that split the family

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

  3. 03

    Formulation evidence, with limits

    3 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 “Taco shell, corn” leaves the eaten grams and unnamed oils, sauces, toppings, substitutions, or leftovers unresolved. Preserve those Taco shell 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 taco shell is the right meal family. Then resolve the phrases that actually separate this set—“corn” and “flour”—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 Taco shell 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 Taco shell 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

Taco shell, flour is higher in total sugars per 100 g

Taco shell, flour reports 4 g versus 1.5 g for Taco shell, corn: a 2.5 g difference when both are normalized to 100 g.

Inspect the underlying evidence

The denominator changes the answer

Taco shell, flour is denser; Taco shell, corn is higher in its source amount

Taco shell, flour reports 511 kcal per 100 g and 230 kcal in USDA source amount (45 g). Taco shell, corn reports a lower 476 kcal per 100 g but a higher 257 kcal in USDA source amount (54 g).

Record identity is part of the estimate

Distinguish “Taco shell, corn” from “Taco shell, flour”

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 Taco shell 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 Shortening, vegetable, household, composite

USDA input 4615 appears in 1 of 2 context records; its summed listed input weight spans 19–19 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 Tortillas, ready-to-bake or -fry, flour, refrigerated

USDA input 18364 appears in 1 of 2 context records; its summed listed input weight spans 100–100 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 Put the observed spread in corpus context Iron: density and serving context

In this page’s records, iron runs from 1.6 mg in Taco shell, corn to 3.9 mg in Taco shell, flour, all per 100 g.

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

In this page’s records, sodium runs from 324 mg in Taco shell, corn to 755 mg in Taco shell, flour, all per 100 g.

Follow this evidence path Inspect an exact record Taco shell, corn

Open the full nutrient table, household measures, formulation inputs, and FoodData Central 2707826 citation for this exact record—not a name-level average.

Follow this evidence path Check another exact record Taco shell, flour

Open the full nutrient table, household measures, formulation inputs, and FoodData Central 2707827 citation for this exact record—not a name-level average.

Follow this evidence path 2 records share this broad food family Breads & baked goods: broader category context

Taco shell, corn and Taco shell, flour are assigned to Feast’s Breads & baked goods editorial category. Use the category page to compare nearby foods at a broad level; keep the exact USDA descriptions on this page for record-level decisions.

Follow this evidence path