Energy
upper quarter476 kcalthis record per 100 g
- Corpus median
- 278 kcal
- Middle 50%
- 259–306 kcal
Based on 174 records reporting energy.
Breads & baked goodshigher variability
Taco shell, corn calories: 257 per 54 g
This exact USDA record reports 257 calories for 54 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 · 54 g
- Calories
- 257 kcal
- Protein
- 3.5 g
- Carbohydrate
- 34.3 g
- Total fat
- 11.8 g
- Fiber
- 3.6 g
- Sodium
- 175 mg
Portion calculator
Estimate your portion
Choose a source measure or enter the weight you ate.
Estimated for 54 g
257calories
Taco shell, corn
- Protein
- 3.5 g
- Carbs
- 34.3 g
- Fat
- 11.8 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 257 calories for USDA reference amount at 54 grams. On a fixed-weight basis, the same record contains 476 calories per 100 grams. The first number answers a portion question; the second answers a concentration question.
Composition: that source amount also reports 3.5 g protein, 3.6 g fiber, and 175 mg sodium. Read those values together: a calorie total by itself cannot describe the nutrient profile.
Identity: the largest listed formulation input is taco shells, baked, 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 medium 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 33–257 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 2707826: “Taco shell, corn.” 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 2707826, each row multiplies the published per-100-gram values by its stated weight. “1 miniature” through “1 medium” are weight scenarios: named measures come from USDA, while percentage labels are transparent arithmetic.
| Scenario | Weight | Energy | Protein | Fiber | Sodium |
|---|---|---|---|---|---|
| 1 miniatureUSDA-listed household measure | 7 g | 33 kcal | 0.4 g | 0.5 g | 23 mg |
| 1 smallUSDA-listed household measure | 18 g | 86 kcal | 1.2 g | 1.2 g | 58 mg |
| 1 mediumUSDA-listed household measure | 28 g | 133 kcal | 1.8 g | 1.9 g | 91 mg |
02 · Fixed-weight context
Where 100 grams sits inside Breads & baked goods
The comparison set contains 174 exact records in Feast’s broader Breads & baked goods category. Here, “upper quarter” describes FDC 2707826’s energy position in that corpus—not nutritional quality, desirability, or a health rating.
Protein
lower quarter6.4 gthis record per 100 g
- Corpus median
- 9.5 g
- Middle 50%
- 7.9–10.7 g
Based on 174 records reporting protein.
Dietary fiber
upper quarter6.7 gthis record per 100 g
- Corpus median
- 3 g
- Middle 50%
- 2–4.6 g
Based on 174 records reporting dietary fiber.
Sodium
lower quarter324 mgthis record per 100 g
- Corpus median
- 477 mg
- Middle 50%
- 409–565 mg
Based on 174 records reporting sodium.
03 · FDA label lens
The strongest strength-side and tradeoff-side signals
At FDC 2707826’s 54 g reference weight, the largest strength-side percentage among the nutrients evaluated here is Dietary fiber; 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
Dietary fiber3.6 g
≈ 13% DV. This does not cross the FDA’s 20% ‘high’ guide.
Magnesium45 mg
≈ 11% DV. This does not cross the FDA’s 20% ‘high’ guide.
Tradeoff-side signals
Saturated fat3.8 g
≈ 19% DV. This does not cross the FDA’s 20% ‘high’ guide.
Sodium175 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 “Taco shell, corn,” the first-pass checks follow the evidence actually published: its named weights, the FDC 2707827 alternative, and its source-formulation identity.
- 01
Listed portion span: 1 miniature to 1 medium
USDA assigns those measures 7 g and 28 g. At this record’s fixed composition, scaled energy moves from 33 kcal to 133 kcal.
- 02
Record choice: compare with FDC 2707827
At an equal 100 g, this record has 431 mg less sodium than “Taco shell, flour.” That is a record-level contrast; it does not identify which ingredient caused the difference.
- 03
Single listed source: Taco shells, baked
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 “corn” fits. Inspect FDC 2707827 when “flour” is the more literal description of the food and preparation.
Keep this profile when these fields fit
Taco shell, corn
- Exact source wording
- “Taco shell, corn”
- Source identity
- USDA FDC 2707826 · FNDDS 52215300
- Named qualifiers
- corn
- Source inputs unique in this pair
- Taco shells, baked
Inspect this alternative when its fields fit better
Taco shell, flour
- Exact source wording
- “Taco shell, flour”
- Source identity
- USDA FDC 2707827 · FNDDS 52215350
- Named qualifiers
- flour
- Source inputs unique in this pair
- Tortillas, ready-to-bake or -fry, flour, refrigerated · Shortening, vegetable, household, composite
Choose the closest description
Which USDA record fits your meal?
Treat the long description as data. The phrases doing the most work here are “corn”. 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 recordTaco shell, corn | 54 g257 kcal | 476 kcal | 6.4 g | 21.8 g | 6.7 g | 324 mg |
| Taco shell, flour | 45 g230 kcal | 511 kcal | 8.8 g | 29.1 g | 3.8 g | 755 mg |
| Gordita/sope shell, plain, no filling | 47 g122 kcal | 260 kcal | 3.9 g | 11.2 g | 2.9 g | 376 mg |
How to compare FDC 2707826: its source amount is 54 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 2707826, the 3 displayed measures scale the same source composition by gram weight; rounding changes presentation, not the underlying ratio.
1 miniature
33 kcal
7 g
1 small
86 kcal
18 g
1 medium
133 kcal
28 g
At a glance
Nutrient signals in the source amount
For FDC 2707826, Saturated fat is the largest displayed non-protein Daily Value signal. Read the set as label context—not a personalized score.
Saturated fat
3.8 g≈ 19% Daily ValueTotal fat
11.8 g≈ 15% Daily ValueDietary fiber
3.6 g≈ 13% Daily ValueThe percentages above apply to FDC 2707826’s 54 g reference amount. FDA Daily Values are general label references, not individualized energy or medical targets. Read the FDA explanation ↗
Source-serving signals
What stands out in this record
These 1 calculated observation describe FDC 2707826 at 54 g—not a measured or recommended plate.
- The representative USDA portion supplies 3.6 g dietary fiber, about 13% of the Daily Value used on U.S. labels.
Nutrition facts
Compare the source serving with 100 grams
Values are rounded for readability. The source serving is 54 g.
| Nutrient | Amount | Approx. % Daily Value |
|---|---|---|
| Calories | 257 kcal 476 kcal | Not established Not established |
| Protein | 3.5 g 6.4 g | Not shown Not shown |
| Carbohydrate | 34.3 g 63.5 g | 12% 23% |
| Total fat | 11.8 g 21.8 g | 15% 28% |
| Dietary fiber | 3.6 g 6.7 g | 13% 24% |
| Sugars | 0.8 g 1.5 g | Not established Not established |
| Sodium | 175 mg 324 mg | 8% 14% |
| Saturated fat | 3.8 g 7.1 g | 19% 36% |
| Monounsaturated Fat | 3.7 g 6.9 g | Not established Not established |
| Polyunsaturated Fat | 3 g 5.5 g | Not established Not established |
| Cholesterol | 0 mg 0 mg | 0% 0% |
| Potassium | 124.7 mg 231 mg | 3% 5% |
| Calcium | 54 mg 100 mg | 4% 8% |
| Iron | 0.9 mg 1.6 mg | 5% 9% |
| Magnesium | 44.8 mg 83 mg | 11% 20% |
| Vitamin C | 0 mg 0 mg | 0% 0% |
| Vitamin D | 0 µg 0 µg | 0% 0% |
| Vitamin A | 0.5 µg 1 µg | 0% 0% |
| Caffeine | 0 mg 0 mg | Not established Not established |
| Alcohol | 0 g 0 g | Not established Not established |
| Water | 3.5 g 6.4 g | Not established Not established |
For FDC 2707826, approximate percentages divide the displayed 54 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 2707826 to one source input totaling 100 g in its standardized formulation. Publishing that exact provenance makes “Taco shell, corn” inspectable beside similarly named records.
How to read this
A single-source formulation
Taco shells, baked 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 | Taco shells, bakedUSDA ingredient 18360 | 100 GM | 100 g | 100% |
Exact-record context
What makes this USDA record distinct?
For FDC 2707826, the close-record rule searches the USDA “Tortillas” 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
Taco shell, corn
- USDA category
- Tortillas
- FDC ID
- 2707826
- FNDDS code
- 52215300
Closest inspectable record
Taco shell, flour
- USDA category
- Tortillas
- FDC ID
- 2707827
- FNDDS code
- 52215350
| Nutrient | This record | Comparison record | Difference |
|---|---|---|---|
| Calories | 476 kcal | 511 kcal | −35 kcal |
| Protein | 6.4 g | 8.8 g | −2.4 g |
| Carbohydrate | 63.5 g | 53.2 g | +10.3 g |
| Total fat | 21.8 g | 29.1 g | −7.3 g |
| Dietary fiber | 6.7 g | 3.8 g | +2.9 g |
| Sodium | 324 mg | 755 mg | −431 mg |
Plain-English read
At the fixed 100-gram basis, this record lists 35 less calories, 2.4 g less protein, and 10.3 g more carbohydrate than “Taco shell, flour.”
Only this record lists Taco shells, baked. Only the comparison record lists Tortillas, ready-to-bake or -fry, flour, refrigerated; Shortening, vegetable, household, composite. Those formulation rows identify different source records; they do not prove which input caused a nutrient difference.
6 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: Taco shells, baked.
Listed only in the comparison: Tortillas, ready-to-bake or -fry, flour, refrigerated; Shortening, vegetable, household, composite.
Portion evidence
The listed portion sets differ
This record’s reference amount is 54 g; a familiar listed measure is 1 medium (28 g).
The comparison record’s reference amount is 45 g; a familiar listed measure is 1 medium (45 g).
Use the 100-gram row to compare FDC 2707826 with FDC 2707827 at equal mass; use their 54 g and 45 g source amounts only for portion matching.
Evidence boundary: FDC 2707826 versus FDC 2707827 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.
From record to familiar meal
Guides that use this exact USDA record
These 1 guide place “Taco shell, corn” beside explicitly linked source records; use them to compare preparations without turning FDC 2707826 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 item size, recipe or brand, moisture and density, spreads or toppings.
For “Taco shell, corn,” resolve item size first, then move through the remaining 3 published levers. Unknowns should remain visible rather than expanding every assumption at once.
- 01
item 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
recipe or brand
Prefer a package, menu, or known recipe when it identifies the food more precisely. Otherwise preserve the generic record as an explicit approximation.
- 03
moisture and density
Match the food state before matching the number. Cooking, draining, or added liquid can change grams and concentration even when the food name barely changes.
- 04
spreads or toppings
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 2707826 comes from FoodData Central Survey Foods (FNDDS). Its 476 kcal per 100 g becomes 257 kcal at 54 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: 2707826
FNDDS food code: 52215300
The scaling for FDC 2707826 can be exact while the match to “Taco shell, corn” is wrong. That is why this profile keeps its 54 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.