If you are looking to cook up a stir fry for dinner or maybe some teriyaki chicken, you might be curious as to if you need to be synning your oyster sauce and how many syns it has on the slimming world plan.

Oyster sauce has on average 0.5 syns a teaspoon, or 1.5 syns for a tablespoon, making it low in syns and a great sauce for adding flavour to dishes.
Down below in our guide, we will take you through how much oyster sauce you can use in the slimming world, some syn values as well as low syn alternatives for making tasty Asian-style dishes.
At 0.5 syns a teaspoon or 1.5 syns for a tablespoon, you can use up to 10 tablespoons of oyster sauce before using up all of your daily syn allowance. Oyster sauce is low in syns thanks to its simple ingredients, being mainly made up of just oyster, water, starch and some sugar.
Oyster is pretty high in sugar, however, having around 9g for 37ml, so we would therefore suggest using this strong sauce in moderation.
Oyster sauce has a similar syn value no matter the brand, but to help you compare, we've listed a wide range of popular syn values down below.

If you don't have oyster sauce on hand and you are looking for an alternative or maybe into Asian cooking, it's useful to know the syn values of some other sauces and substitutes for this sauce.
We've listed some popular ones down below to help you out.

Overall, Oyster sauce is very low in syns, having just 0.5 syns a teaspoon and between 1-1.5 syns for a tablespoon, making it an excellent choice for flavouring Asian dishes like marinades and stir fry, it is high in sugar however, so we would suggest using it in moderation as with other low syn alternatives above.
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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