Brown Onion
Brown Onion by M&S Eat Well provides 37 kcal per 100 g, with 6.2 g of sugars and 1 g of protein. That is 45% more sugar than the average product in this category. Its Nutri-Score is B. It is listed in the Fresh onions category and comes in a 500 g pack.
Nutrient levels per 100 g
Levels use UK front-of-pack reference thresholds.
Nutrition facts
Serving size: 80 g
| Nutrient | Per 100 g | Per serving | % DV* | Category avg |
|---|---|---|---|---|
| Calories | 37 kcal | 30 kcal | 38 | |
| Total fat | 0.1 g | 0.1 g | 0% | 0.8 −87% |
| Saturated fat | 0.1 g | 0.1 g | 1% | 0.1 −7% |
| Carbohydrates | 8 g | 6.4 g | 2% | 5.9 +36% |
| Total sugars | 6.2 g | 5 g | 4.3 +45% | |
| Added sugars | 0 g | 0 g | 0% | 0 |
| Dietary fiber | 0.5 g | 0.4 g | 1% | 1.6 −69% |
| Protein | 1 g | 0.8 g | 2% | 1.4 −26% |
| Salt | 0 g | 0 g | 0.1 −90% |
*% 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
Brown Onion
Product details
- Quantity
- 500 g
- Serving size
- 80 g
- Sold in
- United Kingdom
- Barcode
- 29028221
Prices reported by shoppers
Loading prices…
Frequently asked questions
How many calories are in Brown Onion?
Brown Onion contains 37 kcal per 100 g and about 30 kcal per serving (80 g).
How much sugar is in Brown Onion?
Brown Onion has 6.2 g of sugars per 100 g, which is considered moderate by UK front-of-pack guidelines.
Is Brown Onion healthy?
It has a Nutri-Score of B (A is best, E is worst). Scores describe nutritional quality and processing, not suitability for your individual diet.
Source: Open Food Facts (ODbL). Last updated May 24, 2026. Spotted a mistake? Edit this product on Open Food Facts. Not medical advice — always check the package label.
Reviews
Compare & rankings
Healthier alternatives
Best in category →Same category, meaningfully better on at least one measure and no worse on the others. Each card shows what improves.
a 
a 
a 
a More fresh onions
View all →
a NOVA 1 
a NOVA 1 
NOVA 1 
a NOVA 1 
a NOVA 1 
a NOVA 1 More from M&S Eat Well
View all →
a NOVA 4 
a NOVA 1 
a NOVA 3 
b NOVA 4 
b NOVA 3 
a NOVA 4