Figures from McDonald's UK nutrition calculator, 17 to 18 August 2026 , collected by Boone
Filet-O-Fish Happy Meal, as published. Calorie split calculated by Boone. How
The Filet-O-Fish Happy Meal as published, seen four ways.
0 of 3 limits are over 30% in one Happy Meal, the UK front-of-pack mark for high.
Nothing here passes 30% of an adult’s daily limits in one Happy Meal.
Lower saltChicken McNuggets (4 piece) Happy Meal →0.67g salt (11%), 311 kcalNHS limits by age: salt goes from 25% for an adult to 50% at age 4 to 6.
For age 4 to 6, salt is the bigger share: 1.49g is 50% of the day’s 3g limit in one Happy Meal.
Lower-salt swapChicken McNuggets (4 piece) Happy Meal →0.67g salt, 22% of the 3g limitFor age 7 to 10, salt is the bigger share: 1.49g is 30% of the day’s 5g limit in one Happy Meal.
Lower-salt swapChicken McNuggets (4 piece) Happy Meal →0.67g salt, 13% of the 5g limitFor age 11 to 17, salt is the bigger share: 1.49g is 25% of the day’s 6g limit in one Happy Meal.
Lower-salt swapChicken McNuggets (4 piece) Happy Meal →0.67g salt, 11% of the 6g limitProtein counts in your favour here, but the saturated fat is still 18% of the adult limit.
22.8g of protein, #28 on the menu. Per calorie the Chicken Selects (5 pieces) gives more: 7.0g per 100 kcal against 5.7g.
Most protein per calorieChicken Selects (5 pieces) →39g protein in 560 kcalHere the 596mg of sodium counts as useful after sweaty exercise.
50g of carbohydrate, with 27% of the energy from fat.
Natural sugars in milk, fruit and veg don’t count. NHS →
For smaller portions: the most nutrition per calorie, against all 151 McDonald's items.
More protein per calorie than 75% of the 151 items on the menu.
More fibre per calorie than 68% of the 151 items on the menu.
McDonald's does not publish vitamins or minerals for this item, so Boone does not estimate them.
30 ingredients across 5 parts; 7 are additives or processed (orange).
Group 4 because of the additives or industrial ingredients listed above. How NOVA works →
402 kcal as published. 402 kcal is 20% of a 2,000 kcal adult reference intake.
For a child aged 4 to 6 it is 50% of the day’s 3g salt limit and 36% of the 19g free sugar limit in one item. A Chicken McNuggets (4 piece) Happy Meal has 0.67g of salt, 22% of that salt limit.
19.9g of total sugar as published. Boone estimates 6.9g of it is free sugar, from dextrose, maltodextrin, sugar in the regular bun, fructose, glucose-fructose in the tomato ketchup: 1.7 teaspoons and 23% of an adult’s 30g daily maximum. The other 13g is naturally occurring and does not count.
22.8g, 5.7g per 100 kcal. It ranks #28 of 146 items on the menu for protein. The Chicken Selects (5 pieces) gives the most protein for the calories, 7.0g per 100 kcal.
Yes, NOVA group 4. The ingredient list includes emulsifiers, stabilisers and thickeners and modified starches and sugars.
As published, wheat, milk and fish. Rye, barley and sesame may be present.
Source. McDonald's UK nutrition calculator, 17 to 18 August 2026 , per item as sold.
Collected. Copied by Boone from McDonald's’s published figures. Data checks are led by Murray Dare.
Calculated by Boone. Labelled where it appears.
Limits. NHS free sugar and salt limits by age; UK reference intakes for adults.
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