Snack a Jacks are a popular and healthy snack, they are relatively low in calories and make a great alternative to crisps if you fancy snacking on something savoury or even sweets.

Salt and vinegar Snack a Jacks have approximately 2 syns for a 10.5g and 5.5 syns for a 26g bag of the smaller ones. This makes them a good snack to have on the SW plan occasionally as long as your syn allowance has room.
To help you figure out which low syn Snack a Jacks are best for you, we have composed a short guide below which will take you through whether or not you can eat Snack a Jacks on the SW plan, some other syns for Snack a Jacks as well as a few low syn alternatives which are similar.
There is no reason as to why you can't enjoy salt and vinegar Snack a Jacks on the slimming world diet as long as you have enough room in your syn allowance, you would have to eat up to 3 bags of the small Snack a Jacks to exceed your daily syn allowance or 7 bags of the jumbo ones!

If you feel like saving some syns, you could also buy plain rice cakes and top them with any flavours you want, most rice cakes are syn free on the SW plan as long as they are plain.
It is true that Snack a Jacks are healthier than crisps as they contain fewer calories due to their high volume popped rice size, they also contain much less saturated fat than average potato crisps.
These rice cakes can be high in salt however so you should check the sodium content of your Snack a Jacks before buying.
Snack a Jacks come in quite a few different flavours, we have listed out the popular ones below with their syn values if your looking to change it up and stay on track.

There are many other low syn rice cake alternatives to Snack a Jacks on the market if you are looking to grab a quick snack from the supermarket.
We've listed a few below to give you some inspo for next time you go shopping.

To conclude, salt and vinegar Snack a Jacks are a good medium syn snack to have on the SW plan if your craving some savoury crisps but want to save on syns.
We would suggest sticking with the jumbo pack if you want to save more syns or try buying plain rice cakes and topping them yourself with the flavours you want.
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.
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.
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.
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