If you are looking for a low-syn sweet treat and you are trying to be good on the slimming world plan, you might be wondering about SW Hifi bars, are they syn-friendly?

Well, Slimming World's Hifi bars can be used as your healthy extra B due to their high fibre, allowing you to have up to two bars syn free, however out of this allowance they are classed as having three syns each.
We've put together a small guide below which will take you through how many SW Hifi bars you can have on the slimming world, syn values and some low syn alternative Hifi bars from other brands for when you feel like snacking.
At 3 syns a SW Hifi bar, you can have up to five of these bars before using all of your daily syn allowance, making them a great low syn sweet treat. Since these bars are high in fibre, you can also use them as your healthy extra B, with them having around 3 grams of fibre per bar, you are allowed up to two as your healthy extra B on the plan.
Since SW Hifi bars count as your healthy extra B, you might be wondering if any other bars do too, we've listed some other choices you can snack on below.
Slimming world's Hifi bars come in a huge variety of flavours, but most have similar syn values.

We've listed the syns of their range down below.
If you are tired of Hifi bars and your looking for an alternative high-fibre snack, we've got some other low-syn bars listed for you down below.

Overall, Hifi bars have 3 syns each on the slimming world plan or two can be consumed as your healthy extra B since they are high in fibre. To save syns we recommend only having two of these Hifi bars a day to keep them syn free or try some other Hex B bars such as Alpen Lights.
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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