Nutritional Information for Cucumbers
Cucumber is one of the lowest-calorie foods available at just 16 kcal per 100g, made up of around 95% water. From a SpikeSaver perspective, cucumbers are essentially glucose-neutral — with only 1.2g of carbohydrates per 100g and a negligible glycaemic impact, they will not raise blood sugar in any meaningful way. A whole cucumber contains fewer calories than a single digestive biscuit. The only thing to watch is cucumber-based products with dips or dressings, which add fat, sugar, and sometimes UPF markers.
Nutrition per 100g
| Nutrient | Per 100g | Per serving |
|---|---|---|
| Energy | 16 kcal / 65 kJ | 14 kcal |
| Protein | 1g | 0.9g |
| Carbohydrates | 1.2g | 1.1g |
| of which sugars | 1.2g | — |
| Fat | 0.6g | 0.5g |
| of which saturated | 0g | — |
| Fibre | 0.7g | — |
| Salt | 0.01g | — |
Serving size: 1/4 cucumber (~90g) · Source: Tesco product page, October 2025
Glucose impact
Very Low
Glucose risk
Cucumber contains just 1.2g of carbohydrates per 100g, all of which are naturally occurring sugars. The glycaemic index is negligible — the carbohydrate content is so low that even eating an entire cucumber would deliver only about 4g of carbs. There is essentially zero blood sugar impact from eating cucumber.
Processing level
A whole fresh cucumber is an unprocessed single-ingredient product. It has no additives, preservatives, or flavourings. Pre-sliced or bagged cucumber sticks remain NOVA 1 as they are simply cut and packaged. However, cucumber products with dips (such as soured cream and chive) move to NOVA 3 or NOVA 4 depending on the additives in the dip.
Cucumbers at Tesco
Source: Tesco product page, October 2025
*Prices were correct at the time of collection and may have since changed. Check Tesco.com for current pricing.
What to watch for when shopping
Plain whole or sliced cucumbers are always NOVA 1 and have negligible calories. The only risk comes from cucumber snack packs with dips — the Tesco Cucumber With Soured Cream & Chive Dip jumps to 68 kcal/100g with added fat and processing. Pickled cucumbers (gherkins) are NOVA 2-3 with added salt and vinegar. Budget tip: Tesco Whole Cucumber Each at £0.89 is the best value option.
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