Strawberries contain 32 kcal per 100g — one of the lowest calorie fruits available in UK supermarkets. A standard 400g punnet contains approximately 128 kcal. Strawberries are Free Food on Slimming World with no syn cost at any portion size.
Strawberries are useful for weight loss beyond the calorie count. At 32 kcal per 100g, a generous 200g bowl of strawberries contains only 64 kcal — fewer calories than a single digestive biscuit. The combination of volume, fibre, and natural sweetness makes strawberries one of the most satisfying low-calorie foods available.
This guide covers exact calories for every strawberry format — fresh, frozen, dried, jam, and strawberries with cream — with Slimming World syn values and WW SmartPoints.
Fresh strawberries contain 32 kcal per 100g. A single medium strawberry (approximately 12g) contains 4 kcal. A standard supermarket punnet (400g) contains 128 kcal in total.
| Portion | Weight | Calories | SW | WW Points |
|---|---|---|---|---|
| 1 medium strawberry | 12g | 4 kcal | Free | 0 |
| Small bowl (10 berries) | 120g | 38 kcal | Free | 0 |
| Large bowl (20 berries) | 240g | 77 kcal | Free | 0 |
| Standard punnet | 400g | 128 kcal | Free | 0 |
| Frozen strawberries (100g) | 100g | 30 kcal | Free | 0 |
Frozen strawberries are marginally lower in calories than fresh (30 kcal vs 32 kcal per 100g) because they are picked and frozen at peak ripeness without additional ripening. Both are Free on Slimming World.
Strawberries are Free Food on Slimming World — no syn cost at any portion size. All fresh and frozen strawberries are Free. Strawberries in syrup, strawberry jam, and dried strawberries are not Free and carry a syn cost.
The Free status applies to plain strawberries eaten as they are or added to porridge, cereal, yoghurt, or desserts — as long as the other ingredients are also Free or accounted for. A bowl of fat-free yoghurt (Free) topped with 200g strawberries (Free) costs 0 syns. The same strawberries served with clotted cream cost whatever the cream costs in syns.
100g strawberries (32 kcal) with 30ml double cream (135 kcal) contains approximately 167 kcal in total. At Wimbledon-style portions — 200g strawberries with a generous 60ml of clotted cream — the total reaches approximately 450 kcal.
On Slimming World, the strawberries remain Free. The cream carries the syn cost. 30ml double cream is approximately 7 syns. Clotted cream is higher — around 9 syns per 30ml. Swapping to aerosol cream (1 syn per tablespoon) or fat-free fromage frais (Free) keeps the summer dessert manageable on plan.
Standard strawberry jam contains 250 kcal per 100g. A teaspoon of jam (15g) contains approximately 37 kcal and 2 syns on Slimming World. Reduced-sugar strawberry jam contains 130–160 kcal per 100g depending on brand — approximately 1 syn per teaspoon.
The calorie difference between fresh strawberries (32 kcal per 100g) and jam (250 kcal per 100g) reflects the removal of water and the addition of sugar during the jam-making process. The same weight of fruit produces a product with eight times the calorie density.
Dried strawberries contain approximately 310 kcal per 100g — nearly ten times the calorie density of fresh strawberries. A 30g handful of dried strawberries contains approximately 93 kcal and costs around 5 syns on Slimming World.
Dried strawberries are not a low-calorie equivalent of fresh strawberries. The dehydration removes the water content that makes fresh strawberries filling, concentrating the sugar without the bulk. A 30g portion of dried strawberries provides less satiety than a 200g bowl of fresh strawberries at roughly the same calorie count.
Strawberries are one of the most useful fruits for weight loss because of the combination of low calorie density, high water content (91%), and natural sweetness. A 200g bowl satisfies a sweet craving for 64 kcal — comparable to a single plain biscuit.
Strawberries contain 2g fibre per 100g and 59mg vitamin C per 100g — more vitamin C per gram than oranges. The fibre slows digestion and contributes to the satiety that makes a bowl of strawberries genuinely filling despite the low calorie count. Members who replace pudding with a bowl of strawberries and fat-free yoghurt typically save 200–400 kcal per evening compared to standard dessert options.
A homemade strawberry milkshake with 150g fresh strawberries, 200ml skimmed milk, and no added sugar contains approximately 110 kcal. A supermarket or fast food strawberry milkshake contains 250–400 kcal per serving depending on size and added sugar.
On Slimming World, a blended milkshake using Free ingredients — strawberries, skimmed milk within HEA, and sweetener — costs 0 syns. Milkshakes with added cream, ice cream, or full-fat milk carry the syn cost of those ingredients. McDonald's Strawberry Milkshake (medium, 400ml) contains approximately 330 kcal and around 15 syns.
For a higher-calorie fruit comparison, see Calories in Grapes UK — all varieties are Free on Slimming World despite the higher sugar content.
For another low-calorie berry, see Calories in Blueberries UK — including frozen vs fresh and how blueberries compare to other berries per 100g.
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