
Mcdonald’s Double Filet-O-Fish Burger
The McDonald’s Double Filet-O-Fish Burger is a true seafood favourite, made with two golden, crispy fish patties, layered with creamy tartare sauce and a slice of melty cheddar cheese, all served in a soft, steamed bun. With 453 calories per portion, it offers a satisfying balance of flavour and nutrition. Plus, the fish used is MSC certified, ensuring it’s responsibly sourced from sustainable fisheries.
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Price: £5.69
The medium burger meal comes at £7.59, and the large meal is available for £8.39.
Ingredients in the Double Filet-O-Fish
Every bite of the Double Filet-O-Fish is built on a balance of crunch, creaminess, and freshness. From the soft steamed bun to the golden fish fillets, each element plays its part in creating that classic flavor. Here’s a closer look at the ingredients that bring this sandwich together:

| Ingredient | Description |
|---|---|
| Fish Patty | Made with 75% Alaska Pollock fillet, coated in wheat flour and seasoning. |
| Regular Bun | Soft, steamed bun made with wheat flour. |
| Tartare Sauce | Creamy sauce with gherkins, mustard, and egg yolk. |
| Cheddar Cheese | Processed cheddar slice with milk and butter. |
Double Filet o Fish UK Nutritional Information
The Double Filet-O-Fish is a hearty option that balances protein and carbs while keeping calories in check. With 453 kcal per burger, it provides nearly a quarter of the daily recommended intake. It’s 24g of protein makes it a satisfying choice, while the 45g of carbs give you steady energy. Although it has 19g of fat (including 3.7g of saturates), it remains moderate compared to many fast-food burgers. One thing to note is the 2.1g of salt, which is 35% of the daily guideline, so it’s worth keeping an eye on if you’re monitoring sodium. Overall, it’s a filling meal that fits well into an average adult’s diet when eaten in balance.
| Nutrient | Per Burger | %RI* |
|---|---|---|
| Energy (kcal) | 453 | 23% |
| Protein | 24 g | 48% |
| Carbohydrates | 45 g | 17% |
| of which Sugars | 5.9 g | 7% |
| Fat | 19 g | 28% |
| of which Saturates | 3.7 g | 19% |
| Fibre | 2.5 g | – |
| Salt | 2.1 g | 35% |
%RI = Reference Intake of an average adult (8400kJ/2000kcal).
Double Filet-o-Fish UK Allergen Information
The Double Filet-O-Fish Burger contains several common allergens, so it’s important to check carefully before ordering. It includes fish in the patty, wheat/gluten in both the bun and patty, milk from the cheddar cheese, and egg and mustard in the tartare sauce. The bun may also contain traces of sesame, barley, and rye, which could be a concern for those with sensitivities. However, it does not contain soya, nuts, or peanuts. Always review this information if you have dietary restrictions to ensure a safe and enjoyable meal.
| Allergen | Present in Product |
|---|---|
| Fish | ✔ (fish patty) |
| Wheat/Gluten | ✔ (fish patty, bun) |
| Milk | ✔ (cheddar cheese) |
| Egg | ✔ (tartare sauce) |
| Mustard | ✔ (tartare sauce) |
| Sesame | May contain traces (bun) |
| Barley | May contain traces (bun) |
| Rye | May contain traces (bun) |
| Soya | ✘ |
| Nuts/Peanuts | ✘ |
FAQ’s
It contains 453 kcal per burger.
McDonald’s uses Alaska Pollock or Hoki, sourced from MSC-certified sustainable fisheries.
Yes, it includes a slice of processed cheddar cheese.
No, it contains fish, milk, and egg products.