How Many Syns in Fish Sauce?

Fish sauce is one of those magical store-cupboard ingredients that punches well above its weight, and the brilliant news for Slimming World members is that it's classed as a Free Food. That doesn't mean you'd ever pour it over your dinner like gravy, mind you. This pungent, salty, umami-rich liquid, fermented from anchovies and salt, is used in tiny splashes to season stir-fries, curries, dressings and marinades. A teaspoon contains barely 3 calories, so even if you're heavy-handed, it won't dent your day.

The beauty of fish sauce on Slimming World is how it transforms a plain, syn-free meal into something that tastes restaurant-worthy without adding any syns. A Thai-style chicken stir-fry made with lean breast, peppers, garlic, chilli and a glug of fish sauce becomes a Speed-packed dinner that genuinely satisfies. Drizzle a little into your nam jim dressing alongside lime juice, fresh chilli and a touch of sweetener for a zingy sauce that lifts grilled prawns or shredded chicken salads. It's also brilliant stirred into homemade Vietnamese pho broth or a syn-free larb.

Don't be put off by the smell when you first open the bottle — it mellows dramatically once cooked and adds a savoury depth that salt alone simply cannot replicate. Brands vary in saltiness and intensity, with Squid and Megachef leaning saltier, while Red Boat is prized for its cleaner, purer flavour profile. All the standard varieties remain Free regardless of brand, so pick whichever your supermarket stocks. A single bottle lasts months in the fridge once opened, making it superb value for money. Keep one to hand and you'll find yourself reaching for it whenever a dish needs that final hit of savoury complexity to bring everything together beautifully.