USDA source ingredient 999401FNDDS 2021–2023
Vitamin C as ingredient in USDA source formulations
USDA source ingredient 999401, “Vitamin C as ingredient,” appears in 19 distinct survey-food records in Feast’s cited FNDDS corpus. This page shows exactly where it appears and how its listed input weight varies across those standardized formulations.
It is an ingredient-centered index, not a generic nutrition-facts page. The linked foods include Cereal, chocolate puffs; Cereal, bran flakes, plain; Cereal, cinnamon toast; Cereal, corn puffs; Cereal, corn squares. Open a complete profile to inspect that food’s portions, nutrients, source formulation, and direct FoodData Central citation.
What the code means
One exact source label across 19 complete records.
Every occurrence collected here uses ingredient code 999401 and the source description “Vitamin C as ingredient.” The code is preserved exactly as it appears in the FNDDS input-food rows. It is not a FoodData Central FDC ID, so this page does not invent a standalone ingredient-record URL.
The strongest concentrations of linked records are currently Ready-to-eat cereal, higher sugar (>21.2g/100g) (10), Ready-to-eat cereal, lower sugar (=<21.2g/100g) (9). These are category counts within Feast’s selected 3,850-record corpus. They do not estimate how often the ingredient is eaten, how common it is in recipes generally, or its prevalence across every FNDDS release.
This is an FNDDS formulation label used inside standardized survey-food records. It is a source-calculation component, not necessarily a retail ingredient name.
Why this page qualifies: 19 distinct USDA survey-food records meet the four-record evidence threshold. Because this is a special USDA source label, it also clears the stricter 10-record threshold.
Where USDA uses this input
Linked records by source-food category
Each record is counted once even if ingredient code 999401 appears on more than one input row inside that formulation. The category grouping describes the complete linked foods, not a culinary rule about the ingredient.
USDA survey-food categories
- Ready-to-eat cereal, higher sugar (>21.2g/100g)10 records
Cereal, chocolate puffs; Cereal, cinnamon toast; Cereal, corn squares, flavored
- Ready-to-eat cereal, lower sugar (=<21.2g/100g)9 records
Cereal, bran flakes, plain; Cereal, corn puffs; Cereal, corn squares
Compare complete food records
Nutrient span across the linked foods
Every value in this table describes an entire USDA survey-food record per 100 grams. The values are not the nutrient content of ingredient code 999401, and differences cannot be attributed to this one input.
| Whole-record nutrient | Observed minimum | Median | Observed maximum | Linked records |
|---|---|---|---|---|
| Caloriesper 100 g of the complete food | 356 kcal | 373 kcal | 422 kcal | 19 |
| Proteinper 100 g of the complete food | 4.3 g | 7.9 g | 19 g | 19 |
| Carbohydrateper 100 g of the complete food | 67.9 g | 76.3 g | 82.9 g | 19 |
| Total fatper 100 g of the complete food | 1.2 g | 3.3 g | 11.1 g | 19 |
| Dietary fiberper 100 g of the complete food | 0.3 g | 6.1 g | 20.5 g | 19 |
| Sodiumper 100 g of the complete food | 385 mg | 578 mg | 813 mg | 19 |
The minimum and maximum preserve the complete observed span. The median is the middle linked-record value, not a prediction for a meal and not an ingredient-specific nutrient estimate.
Complete linked catalog
All 19 food records that list code 999401
This is the complete qualifying-corpus catalog, not a hand-picked sample. Search by food name or USDA category, then open a profile for household portions, the full nutrient panel, formulation details, and its exact FDC citation.
19 records shown
| Linked USDA food record | USDA category | Formulation | Listed input weight | Weight share | Calories | Protein | Sodium | Citation |
|---|---|---|---|---|---|---|---|---|
| Cereal, bran flakes, plain | Ready-to-eat cereal, lower sugar (=<21.2g/100g) | 10 input rows | 0 g | 0.02% | 361 kcal | 9.7 g | 585 mg | FDC 2708456 ↗ |
| Cereal, chocolate puffs | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 13 input rows | 0 g | 0.02% | 388 kcal | 5.4 g | 425 mg | FDC 2708449 ↗ |
| Cereal, cinnamon toast | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 12 input rows | 0 g | 0.02% | 414 kcal | 5.9 g | 539 mg | FDC 2708450 ↗ |
| Cereal, corn puffs | Ready-to-eat cereal, lower sugar (=<21.2g/100g) | 12 input rows | 0 g | 0.02% | 371 kcal | 7.7 g | 525 mg | FDC 2708454 ↗ |
| Cereal, corn squares | Ready-to-eat cereal, lower sugar (=<21.2g/100g) | 12 input rows | 0 g | 0.02% | 369 kcal | 7.9 g | 729 mg | FDC 2708452 ↗ |
| Cereal, corn squares, flavored | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 12 input rows | 0 g | 0.02% | 380 kcal | 5.6 g | 662 mg | FDC 2708463 ↗ |
| Cereal, frosted oats with marshmallows | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 10 input rows | 0 g | 0.02% | 372 kcal | 8.2 g | 639 mg | FDC 2708467 ↗ |
| Cereal, fruit crispy | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 8 input rows | 0 g | 0.02% | 384 kcal | 4.3 g | 542 mg | FDC 2708460 ↗ |
| Cereal, fruit rings | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 11 input rows | 0 g | 0.02% | 383 kcal | 5.1 g | 504 mg | FDC 2708459 ↗ |
| Cereal, K's, flavored | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 11 input rows | 0 g | 0.02% | 363 kcal | 7.3 g | 617 mg | FDC 2708472 ↗ |
| Cereal, K's, plain | Ready-to-eat cereal, lower sugar (=<21.2g/100g) | 11 input rows | 0 g | 0.02% | 356 kcal | 19 g | 680 mg | FDC 2708471 ↗ |
| Cereal, O's, flavored | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 11 input rows | 0 g | 0.02% | 385 kcal | 8.6 g | 580 mg | FDC 2708446 ↗ |
| Cereal, O's, honey nut | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 11 input rows | 0 g | 0.02% | 385 kcal | 8.6 g | 580 mg | FDC 2708464 ↗ |
| Cereal, O's, multigrain | Ready-to-eat cereal, lower sugar (=<21.2g/100g) | 12 input rows | 0 g | 0.02% | 373 kcal | 8.5 g | 385 mg | FDC 2708468 ↗ |
| Cereal, O's, plain | Ready-to-eat cereal, lower sugar (=<21.2g/100g) | 10 input rows | 0 g | 0.02% | 374 kcal | 12.4 g | 506 mg | FDC 2708448 ↗ |
| Cereal, other, peanut butter | Ready-to-eat cereal, higher sugar (>21.2g/100g) | 14 input rows | 0 g | 0.02% | 422 kcal | 7.3 g | 525 mg | FDC 2708485 ↗ |
| Cereal, rice squares | Ready-to-eat cereal, lower sugar (=<21.2g/100g) | 12 input rows | 0 g | 0.02% | 357 kcal | 7 g | 813 mg | FDC 2708470 ↗ |
| Cereal, wheat flakes | Ready-to-eat cereal, lower sugar (=<21.2g/100g) | 9 input rows | 0 g | 0.02% | 359 kcal | 10.1 g | 574 mg | FDC 2708480 ↗ |
| Cereal, wheat squares | Ready-to-eat cereal, lower sugar (=<21.2g/100g) | 10 input rows | 0 g | 0.02% | 356 kcal | 10.5 g | 578 mg | FDC 2708476 ↗ |
No linked record matches that filter. Clear the search to restore the complete catalog.
Method and provenance
How this ingredient-centered page was calculated
Feast begins with its pinned USDA FoodData Central Survey Foods corpus for FNDDS 2021–2023. Each exact food profile retains its FDC identifier, source-food description, nutrient values, household measures, and positive-weight input-food rows. This page groups those input rows by the exact ingredient code 999401; it does not merge similar-looking ingredient names or infer synonyms.
The distinct-record count deduplicates by FDC food record. When the same code is listed more than once inside one source formulation, its input weights are added before the listed-weight share is calculated. Category counts also count each food once. Percentiles use the resulting one-share-per-food values, sorted from lowest to highest.
The complete-food nutrient table uses each linked record’s published per-100-gram values so the denominator remains consistent. It is presented for record selection and comparison only. No nutrient value is reassigned to the ingredient, no causal effect is inferred, and no “healthy” score is manufactured from the collection.
How to apply the evidence to a meal
Use the ingredient as a discovery clue. Compare the linked record names, food categories, preparation wording, source formulation, and portion measures. If a close record exists, its complete profile can provide a defensible reference estimate. If the meal differs materially in cooking fat, sauce, ingredient ratios, or portion size, keep looking or use recipe weights, a package label, or an editable photo estimate instead.
These pages are educational source indexes. They do not provide medical advice, personalized nutrient targets, food-safety guidance, or a recipe. If a clinician has given you individualized dietary instructions, follow that guidance and use the most specific current source available for the food you actually consumed.