Energy
upper quarter511 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, flour calories: 230 per 1 medium (45 g)
This exact USDA record reports 230 calories for 1 medium (45 g). That answer belongs to this description and weight; it is not a universal value for every meal that shares the name.
Quick facts
1 medium · 45 g
- Calories
- 230 kcal
- Protein
- 4 g
- Carbohydrate
- 23.9 g
- Total fat
- 13.1 g
- Fiber
- 1.7 g
- Sodium
- 340 mg
Portion calculator
Estimate your portion
Choose a source measure or enter the weight you ate.
Estimated for 1 medium · 45 g
230calories
Taco shell, flour
- Protein
- 4 g
- Carbs
- 23.9 g
- Fat
- 13.1 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 230 calories for 1 medium at 45 grams. On a fixed-weight basis, the same record contains 511 calories per 100 grams. The first number answers a portion question; the second answers a concentration question.
Composition: that source amount also reports 4 g protein, 1.7 g fiber, and 340 mg sodium. Read those values together: a calorie total by itself cannot describe the nutrient profile.
Identity: the largest listed formulation input is tortillas, ready-to-bake or -fry, flour, refrigerated, representing 84% of the record’s listed input weight. The record contains 2 source-input rows in all. These are provenance for a standardized calculation, not a recipe for your plate.
The source calls its underlying survey portion “Quantity not specified,” but it separately lists 1 medium at the identical weight. We use the familiar household label here without changing the source calculation.
The household measures attached to this record span roughly 169–363 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 2707827: “Taco shell, flour.” 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 2707827, each row multiplies the published per-100-gram values by its stated weight. “1 small” through “1 large” are weight scenarios: named measures come from USDA, while percentage labels are transparent arithmetic.
| Scenario | Weight | Energy | Protein | Fiber | Sodium |
|---|---|---|---|---|---|
| 1 smallUSDA-listed household measure | 33 g | 169 kcal | 2.9 g | 1.3 g | 249 mg |
| 1 mediumUSDA-listed household measure | 45 g | 230 kcal | 4 g | 1.7 g | 340 mg |
| 1 largeUSDA-listed household measure | 71 g | 363 kcal | 6.3 g | 2.7 g | 536 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 2707827’s energy position in that corpus—not nutritional quality, desirability, or a health rating.
Protein
middle half8.8 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
middle half3.8 gthis record per 100 g
- Corpus median
- 3 g
- Middle 50%
- 2–4.6 g
Based on 174 records reporting dietary fiber.
Sodium
upper quarter755 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 2707827’s 45 g reference weight, the largest strength-side percentage among the nutrients evaluated here is Iron; 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
Iron2 mg
≈ 10% 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 fat3.7 g
≈ 19% DV. This does not cross the FDA’s 20% ‘high’ guide.
Sodium340 mg
≈ 15% 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, flour,” the first-pass checks follow the evidence actually published: its named weights, the FDC 2707826 alternative, and its source-formulation identity.
- 01
Listed portion span: 1 small to 1 large
USDA assigns those measures 33 g and 71 g. At this record’s fixed composition, scaled energy moves from 169 kcal to 363 kcal.
- 02
Record choice: compare with FDC 2707826
At an equal 100 g, this record has 431 mg more sodium than “Taco shell, corn.” That is a record-level contrast; it does not identify which ingredient caused the difference.
- 03
Formulation anchor: Tortillas, ready-to-bake or -fry, flour, refrigerated
The source formulation has 2 input rows; Tortillas, ready-to-bake or -fry, flour, refrigerated supplies 84% of listed input weight. Those are standardized formulation inputs, not final plated percentages.
05 · Exact-record choice
Select by literal evidence, not the shortest name
Keep this record when “flour” fits. Inspect FDC 2707826 when “corn” is the more literal description of the food and preparation.
Keep this profile when these fields fit
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
Inspect this alternative when its fields fit better
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
Choose the closest description
Which USDA record fits your meal?
Treat the long description as data. The phrases doing the most work here are “flour”. 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, flour | 45 g230 kcal | 511 kcal | 8.8 g | 29.1 g | 3.8 g | 755 mg |
| Taco shell, corn | 54 g257 kcal | 476 kcal | 6.4 g | 21.8 g | 6.7 g | 324 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 2707827: its source amount is 45 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 2707827, the 3 displayed measures scale the same source composition by gram weight; rounding changes presentation, not the underlying ratio.
1 small
169 kcal
33 g
1 medium
230 kcal
45 g
1 large
363 kcal
71 g
At a glance
Nutrient signals in the source amount
For FDC 2707827, Saturated fat is the largest displayed non-protein Daily Value signal. Read the set as label context—not a personalized score.
Saturated fat
3.7 g≈ 19% Daily ValueTotal fat
13.1 g≈ 17% Daily ValueSodium
339.8 mg≈ 15% Daily ValueThe percentages above apply to FDC 2707827’s 45 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 2707827 at 45 g—not a measured or recommended plate.
- The representative USDA portion contains 340 mg sodium, about 15% 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 45 g.
| Nutrient | Amount | Approx. % Daily Value |
|---|---|---|
| Calories | 230 kcal 511 kcal | Not established Not established |
| Protein | 4 g 8.8 g | Not shown Not shown |
| Carbohydrate | 23.9 g 53.2 g | 9% 19% |
| Total fat | 13.1 g 29.1 g | 17% 37% |
| Dietary fiber | 1.7 g 3.8 g | 6% 14% |
| Sugars | 1.8 g 4 g | Not established Not established |
| Sodium | 339.8 mg 755 mg | 15% 33% |
| Saturated fat | 3.7 g 8.3 g | 19% 41% |
| Monounsaturated Fat | 4.6 g 10.3 g | Not established Not established |
| Polyunsaturated Fat | 3.7 g 8.2 g | Not established Not established |
| Cholesterol | 0 mg 0 mg | 0% 0% |
| Potassium | 60.8 mg 135 mg | 1% 3% |
| Calcium | 70.7 mg 157 mg | 5% 12% |
| Iron | 1.8 mg 3.9 mg | 10% 22% |
| Magnesium | 10.8 mg 24 mg | 3% 6% |
| 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 | 2.8 g 6.3 g | Not established Not established |
For FDC 2707827, approximate percentages divide the displayed 45 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 2707827 to 2 source inputs totaling 119 g in its standardized formulation. Publishing that exact provenance makes “Taco shell, flour” inspectable beside similarly named records.
How to read this
2 listed components
The largest listed inputs by source weight are Tortillas, ready-to-bake or -fry, flour, refrigerated, Shortening, vegetable, household, composite. The order and weights below come from the standardized USDA formulation, so they offer context for this exact database entry.
119 g total listed input weight across the formulation.
| # | USDA input | Listed amount | Input weight | Share of listed input weight |
|---|---|---|---|---|
| 1 | Tortillas, ready-to-bake or -fry, flour, refrigeratedUSDA ingredient 18364 · encyclopedia page available | 100 GM | 100 g | 84% |
| 2 | Shortening, vegetable, household, compositeUSDA ingredient 4615 · encyclopedia page available | 19 GM | 19 g | 16% |
Exact-record context
What makes this USDA record distinct?
For FDC 2707827, 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, flour
- USDA category
- Tortillas
- FDC ID
- 2707827
- FNDDS code
- 52215350
Closest inspectable record
Taco shell, corn
- USDA category
- Tortillas
- FDC ID
- 2707826
- FNDDS code
- 52215300
| Nutrient | This record | Comparison record | Difference |
|---|---|---|---|
| Calories | 511 kcal | 476 kcal | +35 kcal |
| Protein | 8.8 g | 6.4 g | +2.4 g |
| Carbohydrate | 53.2 g | 63.5 g | −10.3 g |
| Total fat | 29.1 g | 21.8 g | +7.3 g |
| Dietary fiber | 3.8 g | 6.7 g | −2.9 g |
| Sodium | 755 mg | 324 mg | +431 mg |
Plain-English read
At the fixed 100-gram basis, this record lists 35 more calories, 2.4 g more protein, and 10.3 g less carbohydrate than “Taco shell, corn.”
Only this record lists Tortillas, ready-to-bake or -fry, flour, refrigerated; Shortening, vegetable, household, composite. Only the comparison record lists Taco shells, baked. 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: Tortillas, ready-to-bake or -fry, flour, refrigerated; Shortening, vegetable, household, composite.
Listed only in the comparison: Taco shells, baked.
Portion evidence
The listed portion sets differ
This record’s reference amount is 45 g; a familiar listed measure is 1 medium (45 g).
The comparison record’s reference amount is 54 g; a familiar listed measure is 1 medium (28 g).
Use the 100-gram row to compare FDC 2707827 with FDC 2707826 at equal mass; use their 45 g and 54 g source amounts only for portion matching.
Evidence boundary: FDC 2707827 versus FDC 2707826 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, flour” beside explicitly linked source records; use them to compare preparations without turning FDC 2707827 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, flour,” 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 2707827 comes from FoodData Central Survey Foods (FNDDS). Its 511 kcal per 100 g becomes 230 kcal at 45 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.” The separately listed 1 medium has the same gram weight, so the familiar label can be shown without changing the calculation.
Data cycle: 2021–2023, published October 31, 2024
FoodData Central ID: 2707827
FNDDS food code: 52215350
The scaling for FDC 2707827 can be exact while the match to “Taco shell, flour” is wrong. That is why this profile keeps its 45 g weight, 2-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.