Branded Food · S. ROSEN'S

S. Rosen's Klassic Onion Buns, Klassic Onion

According to USDA FoodData Central (FDC ID 2033711, data refreshed July 2026), nutrition facts per 78g serving, sourced verbatim.

200
Caloriesmoderate density
8.0g
Proteingood source · 16% DV
36.0g
Carbsgood source · 13% DV
3.0g
Fatlow · 4% DV
200 calories per 78g serving

S. Rosen's Klassic Onion Buns, Klassic Onion contains 200 calories per 78g serving according to USDA FoodData Central. It has 8.0g of protein, 3.0g of fat, and 36.0g of carbohydrates per serving. Data is sourced verbatim from the Branded Food database, refreshed July 2026.

  • More protein than 51% of USDA whole foods

The verdict

S. Rosen's Klassic Onion Buns, Klassic Onion carries 10.3g of protein per 100g, more than 51% of USDA whole foods.

10.3g
protein per 100g
Top 49%
protein vs USDA whole foods
256
calories per 100g
1.3g
fiber per 100g

Percentile computed against the 7,880 USDA SR Legacy and Foundation whole foods with a protein value, not branded or processed items.

FDA labeling rules →

S. Rosen's Klassic Onion Buns, Klassic Onion by S. ROSEN'S contains 200 calories per 78g serving (256 kcal per 100g USDA basis), according to the USDA FoodData Central database. It provides 8.0g of protein, 3.0g of fat, and 36.0g of carbohydrates per 78g serving. Dietary fiber: 1.0g. Below you will find a complete nutrient breakdown including vitamins, minerals, and daily value percentages based on a 2,000 calorie diet. Values shown match the FDA-format Nutrition Label, computed per serving from USDA per-100g amounts via the manufacturer-declared serving size. Source: USDA laboratory analysis and manufacturer-reported label data for food products sold in the United States.

Where this data comes from

USDA FoodData Central is the United States government's authoritative reference for food composition, maintained by the Agricultural Research Service and updated as new laboratory analyses and manufacturer submissions are processed. S. Rosen's Klassic Onion Buns, Klassic Onion is catalogued there as FDC ID 2033711, a branded food entry from S. ROSEN'S. Every figure on this page comes from USDA laboratory analysis under the FDC Branded Food program, standardized to 100 g so it can be compared fairly against any other food in the database. The Nutrition Label below shows the per-serving values that match the package; the per-100 g basis is noted where the two differ.

Check the full breakdown above for vitamins, minerals, and amino acids.

Nutritional Value at a Glance

S. Rosen's Klassic Onion Buns, Klassic Onion balances protein, fat, and carbohydrates without any single macro dominating.

At 4% of the Daily Value for fiber, it contributes moderately to daily fiber intake.

Allergen indicators

No FDA Big 9 major-allergen indicator was detected in the product name and brand text scan (milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans, sesame). Absence-of-flag does NOT mean allergen-free. The USDA FoodData Central release does not always include a full ingredient list, always verify with the FDA-mandated ingredient and allergen statement printed on the physical package before consumption.

Nutrition Facts Serving size 78g Amount per serving Calories 200 % Daily Value* Total Fat 3g 4% Saturated Fat 0g 2% Trans Fat 0g Cholesterol 0mg 0% Sodium 340mg 15% Total Carbohydrate 36g 13% Dietary Fiber 1g 4% Total Sugars 4g Includes 4g Added Sugars 8% Protein 8g Vitamin D 0mcg 0% Calcium 66mg 5% Iron 2mg 11% Potassium 88mg 2% * The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Values per 78g serving · 256 kcal per 100g basis

Macro Breakdown

200
Calories per 78g serving
256 kcal per 100g (USDA basis)

200 kcal = 10% of FDA 2,000 kcal Daily Value

0%100%10of 2,000 kcal
200 kcal = 10% of FDA 2,000 kcal Daily Value
P: 8.0gF: 3.0gC: 36.0g
8.0g
Protein
16% DV
3.0g
Total Fat
4% DV
36.0g
Carbs
13% DV
1.0g
Fiber
4% DV
4.0g
Sugar
no FDA DV
340mg
Sodium
15% DV

Values shown per 78g serving, match the FDA Nutrition Label panel. USDA stores the raw amounts per 100g; this page applies the manufacturer-declared serving size to render the on-package values.

Where S. Rosen's Klassic Onion Buns, Klassic Onion ranks on protein

Its 10.3g of protein per 100g placed against every USDA reference (whole) food, the 7,880 SR Legacy and Foundation items with a protein value.

Protein per 100g - S. Rosen's Klassic Onion Buns, Klassic Onion vs every USDA reference food

USDA reference (whole) foods with a protein value

10 Top 49% higher than 51% of 7,880 USDA reference foods

0–5: 2,829 USDA reference foods (36%). Below this entry. 5–10: 1,170 USDA reference foods (15%). Below this entry. 10–15: 863 USDA reference foods (11%). This entry sits in this band. 15–20: 783 USDA reference foods (10%). Above this entry. 20–25: 1,085 USDA reference foods (14%). Above this entry. 25–30: 826 USDA reference foods (10%). Above this entry. 30–35: 230 USDA reference foods (3%). Above this entry. 35–40: 32 USDA reference foods (0%). Above this entry. 40–45: 9 USDA reference foods (0%). Above this entry. 45–50: 11 USDA reference foods (0%). Above this entry. 50–55: 9 USDA reference foods (0%). Above this entry. 55–60: 33 USDA reference foods (0%). Above this entry. This food 0 60 every USDA reference food, bucketed by value

Each bar is a band; taller bars hold more USDA reference foods. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USDA FoodData Central, SR Legacy & Foundation · July 2026

Full Nutrient Breakdown

Every nutrient USDA reports for this food, per 100 g, with each value's share of the FDA Daily Value shown as a bar.

Macronutrients

Nutrient Amount % DV
Carbohydrate, by difference 46.1 G
17%
Energy 256 KCAL
Fiber, total dietary 1.3 G
5%
Protein 10.3 G
21%
Total Sugars 5.1 G
Total lipid (fat) 3.9 G
5%

Vitamins

Nutrient Amount % DV
Sugars, added 5.1 G
10%

Minerals

Nutrient Amount % DV
Calcium, Ca 85 MG
7%
Iron, Fe 3 MG
14%
Potassium, K 113 MG
2%
Sodium, Na 436 MG
19%
Vitamin D (D2 + D3), International Units 0 IU
0%

Lipids

Nutrient Amount % DV
Cholesterol 0 MG
0%
Fatty acids, total saturated 0.64 G
3%
Fatty acids, total trans 0.00 G
Fatty acids, total monounsaturated 0.64 G
Fatty acids, total polyunsaturated 1.9 G

Key takeaways

  • S. Rosen's Klassic Onion Buns, Klassic Onion delivers 8.0g of protein per 100g, more than 51% of USDA whole foods. See the protein ranking
  • It carries 200 calories per 100g.

Nearby Foods

Foods in the same category with similar calorie content, useful for swaps, substitutions, and side-by-side comparison.

No close calorie matches in the same category. Browse the full category index to explore other foods, or use the compare tool to line up any two foods side-by-side.

Frequently Asked Questions

How many calories are in S. Rosen's Klassic Onion Buns, Klassic Onion? ▼
S. Rosen's Klassic Onion Buns, Klassic Onion contains 200 calories per 78g serving (256 cal per 100g basis, USDA storage). It has 8.0g of protein, 3.0g of fat, and 36.0g of carbohydrates.
What are the macros in S. Rosen's Klassic Onion Buns, Klassic Onion? ▼
Per 78g serving, S. Rosen's Klassic Onion Buns, Klassic Onion has 8.0g protein (16% of calories), 3.0g fat, and 36.0g carbs. Fiber: 1.0g. Sugar: 4.0g.
How much sodium is in S. Rosen's Klassic Onion Buns, Klassic Onion? ▼
S. Rosen's Klassic Onion Buns, Klassic Onion contains 340mg of sodium per 78g serving, which is 15% of the recommended daily limit (2,300mg).
Is S. Rosen's Klassic Onion Buns, Klassic Onion high in fiber? ▼
S. Rosen's Klassic Onion Buns, Klassic Onion contains 1.0g of dietary fiber per 78g serving, which is 4% of the daily recommended value (28g).
Is S. Rosen's Klassic Onion Buns, Klassic Onion keto-friendly? ▼
S. Rosen's Klassic Onion Buns, Klassic Onion has 36.0g of carbs per 78g serving (72% of calories), which may be too high for strict keto diets (typically under 5g net carbs per serving).
Is S. Rosen's Klassic Onion Buns, Klassic Onion good for a diet? ▼
S. Rosen's Klassic Onion Buns, Klassic Onion has 200 calories per 78g serving. Fat content: 3.0g.
How does S. Rosen's Klassic Onion Buns, Klassic Onion compare to other foods? ▼
S. Rosen's Klassic Onion Buns, Klassic Onion provides 200 calories and 8.0g protein per 78g serving. That is 25 calories per gram of protein. Use our compare tool to see how it stacks up against similar foods in the same category.

Nutrition Guides

Learn how to interpret and use nutrition data effectively

How to Read Nutrition Labels
Understanding Daily Values (%DV)
Comparing Foods for Better Nutrition
Hidden Sugars in Common Foods
How to Compare Foods for Healthier Choices

Primary source data

📂
USDA FoodData Central
Federal nutrient database, every nutrient figure here
🌱
FDA Food Labeling & Nutrition
Regulatory definitions for labels and serving sizes
💉
NIH Office of Dietary Supplements
Federal vitamin and supplement fact sheets
⚠️
USDA FSIS Recalls
Federal meat, poultry, and egg recall alerts
📣
FDA Food Recalls
Federal alerts for FDA-regulated food products
📋
Dietary Guidelines for Americans
USDA + HHS joint nutrition guidance

Data Sources & Methodology

Data from USDA FoodData Central, April 2026 release. See our methodology.

Source: USDA FoodData Central (FDC ID 2033711) — Branded Food database. Verify with USDA →

Source: FDA 2,000-calorie Daily Value reference — %DV computed against the USDA per-100g standardization basis.

How serving-size math works on this page: USDA stores all nutrient amounts on a per-100g basis for consistency across the catalog. Because the manufacturer declared a 78g serving for this product, the headline values (calories, macros) are multiplied by 78/100 = 0.780 to render the same values you would read on the FDA Nutrition Facts panel. The page surfaces both bases for full transparency.

Disclaimer: This information is for reference only and should not replace professional dietary advice. Nutrient content may vary by brand, preparation method, and seasonal factors.

All federal data sources used on this page

Every figure on GetFoodFacts is rendered directly from official USDA FoodData Central records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.