Syns in Snack a Jacks: Caramel, Salt & Vinegar & More

Updated on 
9 March, 2026

Can I Eat Jumbo Caramel Snack A Jacks On The Slimming World Diet: Are They High In Syns?

When you are looking for an afternoon snack on the SW plan, finding something to eat that's within your syn allowance is not always an easy task, some snacks especially Snack A Jacks can pack a lot of syns depending on their flavours and size.

Jumbo caramel Snack A Jacks have 2.5 syns per packet, making them an excellent low syn snack choice when you get the munchies.

We have gone into more detail below about how many syns the Snack A Jack range of crisps have plus some other low syn alternatives to keep you on track when hunger strikes.

Are Snack A Jacks Good For You On The SW Plan?

Snack A Jacks only come in around 2-5 syns per packet, making them one of the best low syn snacks you can have on this plan, this means you could have a couple of bags per day and still not exceed your syn allowances per day.

The reason why these snacks are low in syns is down to the fact they are made mostly of puffed rice which means more volume and fewer calories, the flavouring is mostly where the syns come from. We would recommend having these snacks in moderation as part of your diet and keeping track of how many syns each pack has to stop you from going over your allowance.

All The Snack A Jack Syn Values You Need To Know

As we mentioned above, Snack A Jack syns vary according to the size of the pack and the flavour that you have chosen, meaning you should take care to calculate the syns beforehand.

We have listed the syn values of these puffed crisps below to help you out.

Snack A Jack Jumbo

  • Snack A Jacks Jumbo cheese flavour - 2 syns a rice cake.
  • Snack A Jacks Jumbo caramel flavour - 2.5 syns a rice cake.
  • Snack A Jacks Jumbo barbecue flavour - 2 syns a rice cake.
  • Snack A Jacks Jumbo chocolate chip flavour - 3 syns a rice cake.
  • Snack A Jacks Jumbo salt and vinegar flavour - 2 syns a rice cake.

Small Snack A Jacks

  • Snack A Jacks 26g bag sweet chilli - 5.5 syns.
  • Snack A Jacks 26g bag prawn cocktail - 5.5 syns.
  • Snack A Jacks 26g bag barbecue - 5.5 syns.
  • Snack A Jacks 26g bag sour cream and chive - 5.5 syns.
  • Snack A Jacks 25g bag caramel - 5 syns.

Low Syn Snack A Jack Alternatives

There are many other types of low syn alternatives snacks to Snack A Jacks from other brands, we have bullet-pointed a few below with their syns to add to your shopping list.

  • Walkers pop all Flavour types - 5 syns 23g bag.
  • Popchips barbecue flavour - 5 syns.
  • Popchips sea salted flavour - 5 syns.
  • Tesco salt and vinegar rice cakes - 1.5 syns per cake.
  • Marmite rice cakes - 1 syns per rice cake.
  • Kallo beet veggie rice cakes - 2 syns per cake.
  • M&S salt and vinegar rice cakes - 2 syns per cake.
  • Good & honest popped chips sweet and salty - 4.5 syns.
  • Good & honest popped chips sweet BBQ - 4.5 syns.
  • M&S smoky BBQ popped chips - 5 syns.

Last Words

To conclude, Snack A Jacks jumbo caramel flavour is low in syns and perfect to snack on if you are looking for SW friendly foods, it is worth noting that the smaller sized packs have more syns due to their volume. Just like all types of crisps, as long as you enjoy these in moderation they can be eaten happily on the SW plan when you want without pushing you over your daily syn allowance.

Frequently Asked Questions

How are syn values calculated?

Syn values are calculated using a formula based on calories, saturated fat and sugar content per serving. They’re not the same as calories — a product can be low in calories but higher in syns if it’s high in sugar or fat. Always check the official Slimming World app for the most accurate and up-to-date syn values.

Do syn values change?

Yes. When manufacturers reformulate their products, the syn value can go up or down. This is why we recommend double-checking with the Slimming World app or your consultant, especially if a product’s packaging has changed recently.

How many syns should I have per day?

Most Slimming World members work with 5 to 15 syns per day. Your consultant will advise on the right amount for you. The key is to use your syns on the things you enjoy most — whether that’s a chocolate bar, a glass of wine, or a packet of crisps.

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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