Glucose: LowNOVA 1

Nutritional Information for Raspberries

Raspberries are one of the best fruits for blood sugar management, delivering just 34 kcal per 100g with an impressive 3.7g of fibre — more fibre than sugar in many cases. From a SpikeSaver perspective, raspberries have a low GI of approximately 25, and their high fibre content means the sugars they do contain are released slowly. They are a NOVA 1 whole food when bought fresh, with zero additives. Among common fruits, raspberries have one of the lowest sugar-to-fibre ratios, making them a smart choice for anyone watching glucose levels.

Raspberries contains 0.8g protein, 34 calories, 5.1g carbs and 0.3g fat per 100g.

Nutrition per 100g

NutrientPer 100gPer serving
Energy34 kcal / 141 kJ27 kcal
Protein0.8g0.6g
Carbohydrates5.1g4.1g
of which sugars5.1g
Fat0.3g0.2g
of which saturated0.1g
Fibre3.7g
Salt0.01g

Serving size: 1 portion (~80g, about a small punnet handful) · Source: Tesco product page, October 2025

Glucose impact

Low

Glucose risk

Raspberries has a low glycemic index (GI 25), meaning it causes a slow, gradual rise in blood glucose.

Raspberries contain 5.1g of sugars per 100g, but their glycaemic index is only around 25. The 3.7g of fibre per 100g — an unusually high ratio for a fruit — significantly slows sugar absorption. An 80g portion delivers just 4.1g of carbohydrate. For context, you would need to eat nearly 500g of raspberries to get the same sugar hit as a single banana.

Processing level

NOVA 1 (unprocessed)

Fresh raspberries are a completely unprocessed single-ingredient food — just the fruit. They contain no additives, preservatives, or added sugars. Frozen raspberries also remain NOVA 1. However, raspberry-flavoured products (raspberry turnovers, raspberry tarts, raspberry yoghurt alternatives) are typically NOVA 3-4 due to added flour, sugar, butter, and flavourings.

Raspberries at Tesco

Source: Tesco product page, October 2025

£2.00*NOVA 1 (unprocessed)
NOVA 1 (unprocessed)
£1.70*NOVA 4 (ultra-processed)
£1.20*NOVA 4 (ultra-processed)

*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

Fresh raspberries are always NOVA 1 and among the best fruits for blood sugar. The danger is raspberry-flavoured products — turnovers (342 kcal, NOVA 4), tarts (390 kcal, NOVA 4), and soya yoghurt alternatives all contain refined flour, added sugar, and ultra-processed ingredients. If it says 'raspberry' but is not actual raspberries, check the label carefully. Budget tip: Tesco Raspberries 150G at £2.00 (£13.33/kg) is the standard option; buying larger packs when available offers better per-kg value.

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