Nutrition report ready

Sliced Red Onions

Calories, Nutri-Score, processing level, additives, ingredients and shopper prices for this Sainsbury's product.

Nutri-Score A NOVA 1

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Sliced Red Onions

by Sainsbury's 150g in Groceries Barcode 00399494

Sliced red onions

Very good nutritional quality
Unprocessed or minimally processed
Green-Score
a
Environmental impact estimate

Sliced Red Onions by Sainsbury's provides 39 kcal per 100 g, with 5.6 g of sugars and 1.3 g of protein. That is 43% less sugar than the average product in this category. Its Nutri-Score is A and it is classified as NOVA 1 (unprocessed or minimally processed). It is listed in the Groceries category and comes in a 150g pack.

Nutrient levels per 100 g

Fat
0.5 g · Low
Saturated fat
0.1 g · Low
Sugars
5.6 g · Moderate
Salt
0 g · Low

Levels use UK front-of-pack reference thresholds.

Nutrition facts

Serving size: 50g

Nutrient Per 100 g Per serving% DV* Category avg
Calories 39 kcal 20 kcal 194 −80%
Total fat 0.5 g 0.3 g 0% 12.8 −96%
Saturated fat 0.1 g 0.1 g 1% 2.4 −96%
Carbohydrates 7.3 g 3.7 g 1% 16.2 −55%
Total sugars 5.6 g 2.8 g 9.8 −43%
Added sugars 0 g 0 g 0% 4.8 −100%
Dietary fiber 1.9 g 1 g 4% 2.4 −20%
Protein 1.3 g 0.7 g 1% 2.8 −54%
Salt 0 g 0 g 5.9 −100%

*% Daily Value for a serving, based on a 2,000-calorie diet (FDA reference values). Category average across 59919 Groceries products on Foodmetria.

Compared with other groceries

Calories lower 20%
Sugars higher 42%
Salt lower 7%
Saturated fat lower 40%
Protein top 49%
Fiber top 29%

Bar shows the share of products in this category that contain less of the nutrient.

Ingredients

Red Onion.

Palm oil freeVeganVegetarian

Product details

Quantity
150g
Serving size
50g
Labels & certifications
Do not freezeDo not eat raw
Sold in
United Kingdom
Barcode
00399494

Prices reported by shoppers

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Frequently asked questions

How many calories are in Sliced Red Onions?

Sliced Red Onions contains 39 kcal per 100 g and about 20 kcal per serving (50g).

How much sugar is in Sliced Red Onions?

Sliced Red Onions has 5.6 g of sugars per 100 g, which is considered moderate by UK front-of-pack guidelines.

Is Sliced Red Onions healthy?

It has a Nutri-Score of A (A is best, E is worst); it is in NOVA group 1 — unprocessed or minimally processed. Scores describe nutritional quality and processing, not suitability for your individual diet.

Is Sliced Red Onions vegan?

Based on its ingredient list, it appears to be vegan. Always check the package label.

Source: Open Food Facts (ODbL). Last updated March 27, 2026. Spotted a mistake? Edit this product on Open Food Facts. Not medical advice — always check the package label.

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