Lowest Calorie Ice Lollies UK (2026): Rocket, FAB, Twister and More Ranked

Updated on 
13 April, 2026

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.

Which are the lowest calorie ice lollies in the UK? (Quick Comparison)

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.

Got under 30 calories to spare? Here are the lowest calorie ice lollies!

Walls Rocket — 22 Calories

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!

Walls Mini Milk — 28 Calories

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.

Fancy a treat between 30 and 65 calories? These are brilliant options!

Rowntree's Watermelon Lolly — 52 Calories

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!

Walls FAB — 61 Calories

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!

Got a few more calories to play with? These lollies are absolutely worth it!

Walls Twister — 73 Calories

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!

Rowntree's Fruit Pastille Lolly — 74 Calories

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!

Walls Calippo Orange — 81 Calories

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 Berry and Exotic — 83–90 Calories

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.

What actually makes an ice lolly low in calories, then?

  • Fruit-based — generally made with water, fruit juice, or purée rather than creamy dairy.
  • Small in size — think Mini Milks; they're designed to be tiny!
  • Low in fat — no heavy cream, milk solids, or chocolate coatings.
  • No added sugar versions — some of our supermarket's own-brand lollies use sweeteners and can be unbelievably low, like 8–10 calories!

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?

Are ice lollies really Slimming World friendly, then?

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!

Frequently Asked Questions

What's the lowest calorie ice lolly you can get in the UK?

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!

Are ice lollies actually lower in calories than ice cream?

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.

How many syns is a Rocket lolly on Slimming World?

A Walls Rocket lolly is approximately 1 syn on Slimming World, which is brilliant news if you're watching your syns!

Jennifer
Jennifer is a certified nutritionist and weight loss coach with a Master's in Nutrition from Cambridge. With over 10 years experience, she shares healthy recipes and science-backed slimming tips on SheCooksSheEats to help people reach their wellness goals. Jennifer stays up-to-date by regularly attending conferences and continuing her nutrition education. She aims to provide research-backed advice to inspire balanced, happy living.
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