Craving a cool treat but watching your calories? You'll be chuffed to hear some ice lollies are as low as a tiny 22 calories! Honestly, forget those heavy ice creams; a refreshing lolly can absolutely hit the spot and save you loads of calories. This guide rounds up the UK's lowest calorie ice lollies for 2026, complete with Slimming World syns and Weight Watchers points, so you can enjoy one completely guilt-free.
| Ice Lolly | Calories | SW Syns (approx) | WW Points (approx) |
|---|---|---|---|
| Walls Rocket | 22 kcal | 1 | 1 |
| Walls Mini Milk | 28 kcal | 1.5 | 1 |
| Rowntree's Watermelon Lolly | 52 kcal | 2.5 | 2 |
| Walls FAB | 61 kcal | 3 | 2 |
| Walls Twister | 73 kcal | 3.5 | 3 |
| Rowntree's Fruit Pastille Lolly | 74 kcal | 3.5 | 3 |
| Walls Calippo Orange | 81 kcal | 4 | 3 |
| Solero Berry | 83 kcal | 4 | 3 |
| Solero Exotic | 90 kcal | 4.5 | 4 |
Just a heads-up, lovely! Calorie figures are per lolly. Always double-check current packaging as recipes can change. Slimming World syn values are approximate (based on 20 kcal = 1 syn); always verify these in the official SW app. Weight Watchers points are approximate SmartPoints.
Oh, the good old Rocket! It's such a proper British classic, isn't it? And guess what? It's actually the lowest calorie branded ice lolly you'll find in UK supermarkets. At just 22 calories, with its lovely raspberry, orange, and lime layers (and no artificial colours, hurrah!), it's practically guilt-free. That's roughly 1 Slimming World syn and just 1 WW SmartPoint. Amazing!
You can find Rockets in pretty much every major supermarket – Tesco, Sainsbury's, Asda, Morrisons, and Waitrose – usually in packs of 8. Honestly, I always keep a bag of these in the freezer; they're an absolute staple for any Slimming World member, myself included, for a reason!
Mini Milks are those adorable, tiny little milk lollies, aren't they? You get strawberry, chocolate, and vanilla flavours, which is lovely. Despite being so creamy, they're only 28 calories each – that's approximately 1.5 syns on Slimming World. Honestly, if you fancy something a little bit creamier but don't want to overdo it on your syn allowance, these are absolutely brilliant and a personal favourite of mine.
Rowntree's fruit lollies are proper popular, and honestly, I can totally see why. Their Watermelon variety is one of the lightest at around 52 calories, which works out to roughly 2.5 syns. It's so refreshing, bursting with natural flavour, and you can usually find multipack boxes of these in the supermarkets throughout the summer. Absolutely lovely!
Oh, the FAB! Now, that's an iconic British treat if ever there was one – strawberry lolly, vanilla ice cream centre, and that delightful chocolate chip topping. Walls actually reformulated these to bring the calories down, which was brilliant, and now it's only about 61 calories – that's around 3 syns. Honestly, for three layers of flavour and texture, I reckon that's genuinely good value for your calorie allowance!
The Twister is another firm favourite of mine, combining yummy vanilla ice cream with a zesty tropical passion fruit and pineapple swirl, all for 73 calories. It feels a bit more substantial than a plain fruit lolly, which, for me, makes the 3.5 syns totally worth it. Definitely a solid choice when you're after something a bit more filling!
If you're a fan of those chewy Fruit Pastilles, you'll absolutely love the lolly version. It's a brilliant option at 74 calories and really delivers on those bold fruit flavours in a super refreshing frozen treat. That's approximately 3.5 syns. I've noticed these tend to fly off the shelves in summer, so it's definitely worth keeping a stash in your freezer – I always do!
The Calippo is that iconic sorbet-style lolly you push up from the carton, isn't it? The orange flavour comes in at 81 calories and, honestly, it has such a satisfying, intensely fruity taste. At around 4 syns, it's a perfectly reasonable choice – especially good for those really hot days when you want something substantial and properly cooling.
Solero lollies are proper lush, pairing that lovely vanilla ice cream with a real fruit coating. The Berry variety is around 83 calories and the Exotic (with its gorgeous mango and passion fruit) is approximately 90 calories. Both are around 4–4.5 syns. I find them much more filling than pure fruit lollies, so they're totally worth the slightly higher calorie count if you're craving something a bit creamy.
It stands to reason that lollies with a dairy base (like an ice cream centre) or a chocolate coating will always be a bit higher in calories. But honestly, even a Twister at 73 calories is still miles, miles lower than a Magnum Classic, which usually clocks in around 260 calories. Makes you think, doesn't it?
Absolutely, you totally can! Most of these fruit-based ice lollies fit comfortably into your daily 15-syn allowance. The Rocket (just 1 syn!) and Mini Milk (1.5 syns) are my absolute go-to choices for a virtually guilt-free frozen treat on Slimming World. Even a Solero at 4.5 syns leaves you with plenty of budget for the rest of the day. So go on, enjoy that lolly!
If you're after more low syn frozen and cold drink options, don't forget to check out our complete low syn drinks guide – it's full of great ideas!
Honestly, the Walls Rocket lolly is one of the lowest calorie ice lollies you'll find in UK supermarkets, coming in at just 22 calories per lolly. The Walls Mini Milk is super close behind at 28 calories, so both are brilliant choices!
Generally, yes – by a massive margin! Fruit-based ice lollies are typically a modest 20–90 calories, whereas a standard ice cream bar usually packs in 150–300+ calories. The big difference is mainly fat content: fruit lollies have very little fat, while ice cream is, well, high in cream and sugar! So it's a no-brainer really.
A Walls Rocket lolly is approximately 1 syn on Slimming World, which is brilliant news if you're watching your syns!
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