Slimfast is a well-known brand in the diet industry, they are great for producing low calories snacks and shakes, but since these foods are not syn free, you need to ensure your track them.
The Slimfast shakes tend to have between 10-11 syns a shake, making them very high in syns, the value depends on the shake flavour that you choose.
In our small guide below, we will discuss what makes Slimfast shakes so high in syns, the syn values of their whole shake range as well a few low syn alternatives, we have also included a friendly slimming world smoothie to have as an alternative!
Slimfast shakes are high in syns due to the fact they contain skimmed milk powder which contributes to the calories, they are aimed to be a meal replacement rather than as a drink.
On the slimming world plan, we would avoid having these shakes due to them being so high in syns and having little nutritional benefits in comparison to having an actual meal.
Slimfast shakes come in a few different flavours so do vary slightly in syns, we've listed the values of their whole range below.
If you like meal replacement shakes as a way to lose weight then you might be interested in checking out some of the low syn alternatives we've listed below.
If you love a shake or a smoothie but don't want to waste so many syns on them, we've put together a slimming world smoothie recipe below which will only cost you two syns.
Overall, Slimfast shakes have between 10-11 syns depending on the flavour that you choose making them very high in syns, you would need to save nearly your whole daily syn allowance to consume one. As a lower syn alternative, we would suggest checking out other shakes above or making your own SW friendly 2 syn version!
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.
Related Articles
200+ foods with syn values & calories.
Print it, stick it on the fridge!
