If you are lactose intolerant or simply prefer the taste of plant-based kinds of milk like soya milk to regular milk, you might be wondering if you have to count syns by using this milk as an alternative on the plan.

Soya milk is syn free up to 400ml on the plan as long as you are using it as your healthy extra A dairy allowance, making it a great option for coffees and smoothies when you need extra protein, above this allowance, you will then have to syn it at 1 syn for 40ml or 0.5 syns for the unsweetened types.
To find out more about the syns in this plant-based milk, we've made a short syn guide below taking you through how much soya milk you can have on SW, syn values, which milks count as your healthy extra A and some low syn alternatives.
At 1 syns or 0.5 syns for 40 ml, you could have up to around two and a half cups of sweetened soya milk on the plan before using all your daily syn allowance or around double this for their unsweetened version, making it a great low syn drink choice.
However, as we mentioned above, you can also have up to 400ml of soya milk syn free on the plan when using it as your healthy extra A dairy allowance thanks to the protein, anything over this you will then have to syn it on the plan.
If you are not using soya milk as your healthy extra A, you will then have to syn it, we've listed some varying syn values of soya milk down below to help you out.

Since 400ml of soya milk counts as your healthy extra A, you might be wondering if any other plant-based milks can also count towards this dairy allowance on the plan, we've listed some options down below.
If you find soya milk to be too high in syns, or maybe you are not keen on it in your coffee or cereal, we've got a list of alternative low-syn plant-based milks for you to check out down below.

Overall, soya milk is a very low syn plant based drink, at just 1 syn for 40 ml or 0.5 syns for an unsweetened version, you could also have up to 400ml of it as your healthy extra dairy allowance on the plan.
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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