Breakfast foodsmoderate variability

Cereal, bran flakes, plain calories: 181 per 1 cup (50 g)

This exact USDA record reports 181 calories for 1 cup (50 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 cup · 50 g

Calories
181 kcal
Protein
4.8 g
Carbohydrate
37.5 g
Total fat
1.2 g
Fiber
10.3 g
Sodium
293 mg

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 1 cup · 50 g

181calories

Cereal, bran flakes, plain

Protein
4.8 g
Carbs
37.5 g
Fat
1.2 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 2708456

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 181 calories for 1 cup at 50 grams. On a fixed-weight basis, the same record contains 361 calories per 100 grams. The first number answers a portion question; the second answers a concentration question.

Composition: that source amount also reports 4.8 g protein, 10.3 g fiber, and 293 mg sodium. Read those values together: a calorie total by itself cannot describe the nutrient profile.

Identity: the largest listed formulation input is flour, wheat, all-purpose, unenriched, unbleached, representing 80.4% of the record’s listed input weight. The record contains 10 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 cup 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 108–181 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 2708456: “Cereal, bran flakes, plain.” 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 2708456, each row multiplies the published per-100-gram values by its stated weight. “1 prepackaged single serving” through “1 cup” are weight scenarios: named measures come from USDA, while percentage labels are transparent arithmetic.

Three gram-weight scenarios calculated from this exact USDA nutrient record
ScenarioWeightEnergyProteinFiberSodium
1 prepackaged single servingUSDA-listed household measure 30 g 108 kcal 2.9 g 6.2 g 176 mg
75% of the reference weightArithmetic scenario from the reference weight 37.5 g 135 kcal 3.6 g 7.7 g 219 mg
1 cupUSDA-listed household measure 50 g 181 kcal 4.8 g 10.3 g 293 mg

02 · Fixed-weight context

Where 100 grams sits inside Ready-to-eat cereal, lower sugar (=<21.2g/100g)

The comparison set contains 19 exact records in the Ready-to-eat cereal, lower sugar (=<21.2g/100g) USDA category. Here, “middle half” describes FDC 2708456’s energy position in that corpus—not nutritional quality, desirability, or a health rating.

Energy

middle half

361 kcalthis record per 100 g

Corpus median
367 kcal
Middle 50%
358–373 kcal

Based on 19 records reporting energy.

Protein

middle half

9.7 gthis record per 100 g

Corpus median
9.5 g
Middle 50%
7.8–10.5 g

Based on 19 records reporting protein.

Dietary fiber

upper quarter

20.5 gthis record per 100 g

Corpus median
8 g
Middle 50%
5.4–10.7 g

Based on 19 records reporting dietary fiber.

Sodium

middle half

585 mgthis record per 100 g

Corpus median
509 mg
Middle 50%
387–595 mg

Based on 19 records reporting sodium.

03 · FDA label lens

The strongest strength-side and tradeoff-side signals

At FDC 2708456’s 50 g reference weight, the largest strength-side percentage among the nutrients evaluated here is Iron; the larger tradeoff-side percentage is Sodium. 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

Iron14 mg

≈ 78% DV. This crosses the FDA’s 20% ‘high’ guide.

Dietary fiber10.3 g

≈ 37% DV. This crosses the FDA’s 20% ‘high’ guide.

Tradeoff-side signals

Sodium293 mg

≈ 13% DV. This does not cross the FDA’s 20% ‘high’ guide.

Saturated fat0.1 g

≈ 0% DV. This does not cross the FDA’s 20% ‘high’ guide.

04 · Highest-impact checks

The three levers most worth resolving first

For “Cereal, bran flakes, plain,” the first-pass checks follow the evidence actually published: its named weights, the FDC 2708480 alternative, and its source-formulation identity.

  1. 01

    Listed portion span: 1 prepackaged single serving to 1 cup

    USDA assigns those measures 30 g and 50 g. At this record’s fixed composition, scaled energy moves from 108 kcal to 181 kcal.

  2. 02

    Record choice: compare with FDC 2708480

    At an equal 100 g, this record has 10.1 g more dietary fiber than “Cereal, wheat flakes.” That is a record-level contrast; it does not identify which ingredient caused the difference.

  3. 03

    Formulation anchor: Flour, wheat, all-purpose, unenriched, unbleached

    The source formulation has 10 input rows; Flour, wheat, all-purpose, unenriched, unbleached supplies 80.4% 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 “bran flakes; plain” fits. Inspect FDC 2708480 when “wheat flakes” is the more literal description of the food and preparation.

Keep this profile when these fields fit

Cereal, bran flakes, plain

Exact source wording
“Cereal, bran flakes, plain”
Source identity
USDA FDC 2708456 · FNDDS 57207000
Named qualifiers
bran flakes · plain
Source inputs unique in this pair
Oil, canola

Inspect this alternative when its fields fit better

Cereal, wheat flakes

Exact source wording
“Cereal, wheat flakes”
Source identity
USDA FDC 2708480 · FNDDS 57418000
Named qualifiers
wheat flakes

06 · Continue with purpose

The next pages answer different follow-up questions

Choose the closest description

Which USDA record fits your meal?

Treat the long description as data. The phrases doing the most work here are “bran flakes” and “plain”. 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.

Nearby USDA records compared with this exact food description
Exact recordSource servingCalories / 100 gProtein / 100 gFat / 100 gFiber / 100 gSodium / 100 g
This recordCereal, bran flakes, plain 50 g181 kcal 361 kcal 9.7 g 2.4 g 20.5 g 585 mg
Cereal, corn flakes, plain 30 g110 kcal 365 kcal 6.4 g 1.6 g 3.5 g 703 mg
Cereal, K's, plain 35 g125 kcal 356 kcal 19 g 1.6 g 3.2 g 680 mg
Cereal, O's, plain 30 g112 kcal 374 kcal 12.4 g 6.2 g 10.5 g 506 mg
Cereal, wheat flakes 40 g144 kcal 359 kcal 10.1 g 1.5 g 10.4 g 574 mg
Cereal, plain puffs 15 g54 kcal 357 kcal 9.5 g 1.7 g 8.7 g 4 mg
Cereal, other, plain 30 g111 kcal 370 kcal 9.4 g 3.9 g 7 g 605 mg

How to compare FDC 2708456: its source amount is 50 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 2708456, the 2 displayed measures scale the same source composition by gram weight; rounding changes presentation, not the underlying ratio.

1 cup

181 kcal

50 g

1 prepackaged single serving

108 kcal

30 g

At a glance

Nutrient signals in the source amount

For FDC 2708456, Iron is the largest displayed non-protein Daily Value signal. Read the set as label context—not a personalized score.

Iron

14.1 mg≈ 78% Daily Value

Dietary fiber

10.3 g≈ 37% Daily Value

Carbohydrate

37.5 g≈ 14% Daily Value

The percentages above apply to FDC 2708456’s 50 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 2 calculated observations describe FDC 2708456 at 50 g—not a measured or recommended plate.

  • The representative USDA portion supplies 10.3 g dietary fiber, about 37% of the Daily Value used on U.S. labels.
  • The representative USDA portion contains 293 mg sodium, 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 50 g.

Nutrient amounts for the selected source serving or 100 grams
NutrientAmountApprox. % Daily Value
Calories 181 kcal Not established
Protein 4.8 g Not shown
Carbohydrate 37.5 g 14%
Total fat 1.2 g 2%
Dietary fiber 10.3 g 37%
Sugars 7.7 g Not established
Sodium 292.5 mg 13%
Saturated fat 0.1 g 0%
Monounsaturated Fat 0.4 g Not established
Polyunsaturated Fat 0.3 g Not established
Cholesterol 0 mg 0%
Potassium 60.5 mg 1%
Calcium 9.5 mg 1%
Iron 14.1 mg 78%
Magnesium 14.5 mg 3%
Vitamin C 11.6 mg 13%
Vitamin D 2.5 µg 13%
Vitamin A 0 µg 0%
Caffeine 0 mg Not established
Alcohol 0 g Not established
Water 4.5 g Not established

For FDC 2708456, approximate percentages divide the displayed 50 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 2708456 to 10 source inputs totaling 99.5 g in its standardized formulation. Publishing that exact provenance makes “Cereal, bran flakes, plain” inspectable beside similarly named records.

How to read this

10 listed components

The largest listed inputs by source weight are Flour, wheat, all-purpose, unenriched, unbleached, Sugars, granulated, Fiber, total dietary, as ingredient. The order and weights below come from the standardized USDA formulation, so they offer context for this exact database entry.

99.5 g total listed input weight across the formulation.

USDA source inputs listed for this exact survey-food record
#USDA inputListed amountInput weightShare of listed input weight
1 Flour, wheat, all-purpose, unenriched, unbleachedUSDA ingredient 20481 · encyclopedia page available 80 GM 80 g 80.4%
2 Sugars, granulatedUSDA ingredient 19335 · encyclopedia page available 15 GM 15 g 15.1%
3 Salt, tableUSDA ingredient 2047 · encyclopedia page available 1.5 GM 1.5 g 1.5%
4 Fiber, total dietary, as ingredientUSDA ingredient 999291 · encyclopedia page available 1.8 GM 1.8 g 1.8%
5 Oil, canolaUSDA ingredient 4582 · encyclopedia page available 1 GM 1 g 1%
6 Vitamin B composite in cerealsUSDA ingredient 999001 · encyclopedia page available 0.03 GM 0 g 0%
7 Folic acid as ingredientUSDA ingredient 999431 · encyclopedia page available 0.03 GM 0 g 0%
8 Iron as ingredientUSDA ingredient 999303 · encyclopedia page available 0.03 GM 0 g 0%
9 Vitamin D as ingredientUSDA ingredient 999328 · encyclopedia page available 0.05 GM 0.1 g 0.1%
10 Vitamin C as ingredientUSDA ingredient 999401 · encyclopedia page available 0.02 GM 0 g 0%

Use this formulation to choose a closer record—not to reverse-engineer a recipe. If your meal adds, removes, or substantially changes one of these components, another source entry or a photo-based estimate may fit better.

Exact-record context

What makes this USDA record distinct?

For FDC 2708456, the close-record rule searches the USDA “Ready-to-eat cereal, lower sugar (=<21.2g/100g)” 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.

Exact nutrient values per 100 grams
NutrientThis recordComparison recordDifference
Calories361 kcal359 kcal+2 kcal
Protein9.7 g10.1 g−0.5 g
Carbohydrate75 g76.3 g−1.3 g
Total fat2.4 g1.5 g+1 g
Dietary fiber20.5 g10.4 g+10.1 g
Sodium585 mg574 mg+11 mg

Plain-English read

At the fixed 100-gram basis, this record lists 10.1 g more dietary fiber than “Cereal, wheat flakes.”

Only this record lists Oil, canola. Those formulation rows identify different source records; they do not prove which input caused a nutrient difference.

1 of the six displayed differences clears 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.

Shared listed inputs: Flour, wheat, all-purpose, unenriched, unbleached; Sugars, granulated; Salt, table; Fiber, total dietary, as ingredient; and 5 more.

Listed only in this record: Oil, canola.

Portion evidence

The listed portion sets differ

This record’s reference amount is 50 g; a familiar listed measure is 1 cup (50 g).

The comparison record’s reference amount is 40 g; a familiar listed measure is 1 cup (40 g).

Use the 100-gram row to compare FDC 2708456 with FDC 2708480 at equal mass; use their 50 g and 40 g source amounts only for portion matching.

Evidence boundary: FDC 2708456 versus FDC 2708480 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.

Review the full ready-to-eat cereal, lower sugar (=<21.2g/100g) source category → Read the calculation and selection methodology →

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 portion size, recipe or brand, cooking fat, toppings and add-ins.

For “Cereal, bran flakes, plain,” resolve portion size first, then move through the remaining 3 published levers. Unknowns should remain visible rather than expanding every assumption at once.

  1. 01

    portion 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.

  2. 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.

  3. 03

    cooking fat

    Match the named cooking-fat state when possible. Fat used, retained, or left behind is preparation information that a dish name alone cannot recover.

  4. 04

    toppings and add-ins

    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 2708456 comes from FoodData Central Survey Foods (FNDDS). Its 361 kcal per 100 g becomes 181 kcal at 50 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 cup 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: 2708456

FNDDS food code: 57207000

The scaling for FDC 2708456 can be exact while the match to “Cereal, bran flakes, plain” is wrong. That is why this profile keeps its 50 g weight, 10-row source formulation, and selection uncertainty beside the arithmetic.

Open the source record ↗

Source release October 31, 2024. Review USDA’s data-type documentation ↗ · Read Feast’s full nutrition methodology.