How Much Sugar Is in Raspberries?

A cup of raspberries has only about 5 g of natural sugar — one of the lowest-sugar fruits, with 8 g of fibre in the same cup.

Low sugar
5g sugar

in 1 cup (123 g) · about 1.2 teaspoons

Per serving
5 g
Per 100 g
4.4 g
Type
Natural sugar
In teaspoons
≈ 1.2 tsp

An easy fit for a low-sugar day.

A full cup of raspberries has just 5 g of sugar, paired with about 8 g of fibre — an unusually good ratio. That fibre load is why raspberries barely move blood sugar despite tasting genuinely sweet-tart.

They're one of the best fruits to reach for on a low-sugar day: generous volume, real sweetness, minimal sugar. The only caution is what you add — a sugary yogurt or a drizzle of honey can undo the advantage fast.

Lower-sugar swaps

  • Eat them plain or with a spoon of plain Greek yogurt
  • Add to sparkling water for naturally tart flavour

Frequently asked questions

Are raspberries good for a low-sugar diet?
Yes — at about 4.4 g per 100 g they're among the lowest-sugar fruits, and the fibre content is among the highest of any fruit.
Which berries have the least sugar?
Raspberries and blackberries are the lowest of the common berries, both well below strawberries and far below grapes.

Sugar values from USDA FoodData Central; actual amounts vary by brand, ripeness, and recipe. Last updated 2026-08-09.