Jaffa cakes are a favourite sweet snack for many of us and you can happily eat them while losing weight on the slimming world plan as long as your tracking their syns.

These Jaffa Cakes have 2.5 syns per cake making them low in syns and fine to eat within moderation on the slimming world diet.
Down below in our guide, we have discussed how many Jaffa Cakes you can eat on the slimming world plan, the syn values of all Jaffa Cake flavours, some low syn alternatives as well as an SW recipe to make your own one syn Jaffa Cakes at home!
At just 2.5 syns per Jaffa Cake, you could eat up to 6 cakes a day before exceeding your daily syn allowance making them a great low syn snack if you fancy something sweet.
We would suggest however eating Jaffa Cakes in moderation as they can be high in sugar, having nearly 6 grams per cake in them, the flavoured versions also have to vary syns.

Jaffa cakes now have a range of different flavours not just the original, therefore can vary in syns slightly, we've listed the whole range below to help you out.

If you are looking for some other low syn sweet treats which are similar to Jaffa Cakes, you are in luck, we've put together a list of best low syn alternatives below to add to your shopping basket.

If you feel like some Jaffa Cakes, but don't want to waste syns, why not try making your own one syn Jaffa Cakes at home?
Our recipe below makes 12 cakes and there is only one syn per cake!

To conclude, at just 2.5 syn a cake, Jaffa Cakes make a great SW friendly sweet treat to have on the plan and won't affect your weight loss when consumed within moderation. If you would like to save some syns however you can always check out our Jaffa Cake recipe above which only has one syn per cake!
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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