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Red Onion
Red Onion provides 42 kcal per 100 g, with 4.8 g of sugars and 1 g of protein. That is 12% more sugar than the average product in this category. It is classified as NOVA 1 (unprocessed or minimally processed). It is listed in the Fresh onions category and comes in a 300 g pack.
Nutrient levels per 100 g
Levels use UK front-of-pack reference thresholds.
Nutrition facts
Serving size: 300 g
| Nutrient | Per 100 g | Per serving | % DV* | Category avg |
|---|---|---|---|---|
| Calories | 42 kcal | 126 kcal | 38 +11% | |
| Total fat | 0 g | 0 g | 0% | 0.8 −100% |
| Saturated fat | 0.2 g | 0.6 g | 3% | 0.1 +85% |
| Carbohydrates | 10 g | 30 g | 11% | 5.9 +71% |
| Total sugars | 4.8 g | 14.4 g | 4.3 +12% | |
| Added sugars | 0 g | 0 g | 0% | 0 |
| Dietary fiber | 1.7 g | 5.1 g | 18% | 1.6 |
| Protein | 1 g | 3 g | 6% | 1.4 −26% |
| Salt | 0.1 g | 0.3 g | 0.1 |
*% Daily Value for a serving, based on a 2,000-calorie diet (FDA reference values). Category average across 43 Fresh onions products on Foodmetria.
Compared with other fresh onions
Bar shows the share of products in this category that contain less of the nutrient.
Ingredients
Red onions
Product details
- Quantity
- 300 g
- Serving size
- 300 g
- Sold in
- Canada, United States
- Barcode
- 00004082
Prices reported by shoppers
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Frequently asked questions
How many calories are in Red Onion?
Red Onion contains 42 kcal per 100 g and about 126 kcal per serving (300 g).
How much sugar is in Red Onion?
Red Onion has 4.8 g of sugars per 100 g, which is considered low by UK front-of-pack guidelines.
Is Red Onion healthy?
It is in NOVA group 1 — unprocessed or minimally processed. Scores describe nutritional quality and processing, not suitability for your individual diet.
Is Red Onion vegan?
Based on its ingredient list, it appears to be vegan. Always check the package label.
Source: Open Food Facts (ODbL). Last updated April 1, 2026. Spotted a mistake? Edit this product on Open Food Facts. Not medical advice — always check the package label.
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