Figures from McDonald's UK nutrition calculator, 17 to 18 August 2026 , collected by Boone
McPlant, as published. Calorie split calculated by Boone. How
The McPlant as published, seen four ways.
3 of 3 limits are over 30% in one burger, the UK front-of-pack mark for high.
Free sugar is the biggest issue: 11g is 37% of an adult’s daily 30g in one burger.
Lower free sugarBacon Mayo →4g free sugar (13%), 329 kcalNHS limits by age: salt goes from 35% for an adult to 70% at age 4 to 6.
For age 4 to 6, salt is the bigger share: 2.1g is 70% of the day’s 3g limit in one burger.
Lower-salt swapMayo Chicken →0.92g salt, 31% of the 3g limitFor age 7 to 10, free sugar is the bigger share: 11g is 46% of the day’s 24g limit.
Lower-salt swapMayo Chicken →0.92g salt, 18% of the 5g limitFor age 11 to 17, free sugar is the bigger share: 11g is 37% of the day’s 30g limit.
Lower-salt swapMayo Chicken →0.92g salt, 15% of the 6g limitProtein counts in your favour here, but the saturated fat is still 32% of the adult limit.
19g of protein, #39 on the menu. Per calorie the Chicken Selects (5 pieces) gives more: 7.0g per 100 kcal against 4.5g.
Most protein per calorieChicken Selects (5 pieces) →39g protein in 560 kcalHere the 840mg of sodium counts as useful after sweaty exercise.
40g of carbohydrate, with 42% 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 58% of the 151 items on the menu.
More fibre per calorie than 85% of the 151 items on the menu.
McDonald's does not publish vitamins or minerals for this item, so Boone does not estimate them.
The 2018 model indicates this burger is less healthy: it scores 11, above the line of 4.
Higher is less healthy; 4 or more would be classed as less healthy under this model. How the score works →
Joint #67 of 109 on the menu for this score (lower is better).
UK Nutrient Profiling Model 2018 →83 ingredients across 10 parts; 28 are additives or processed (orange).
Group 4 because of the additives or industrial ingredients listed above. How NOVA works →
Cheeseburger 16g protein, 1.4g salt303
Filet-O-Fish 14g protein, 1.4g salt316Bacon Mayo 18g protein, 1.5g salt329
McChicken Sandwich 17g protein, 1.2g salt371
McPlant 19g protein, 2.1g salt426
Double Cheeseburger 27g protein, 2.1g salt452
Double Filet-O-Fish 24g protein, 2.1g salt453
McSpicy 24g protein, 1.9g salt454426 kcal as published. 426 kcal is 21% of a 2,000 kcal adult reference intake.
For a child aged 4 to 6 it is 70% of the day’s 3g salt limit and 58% of the 19g free sugar limit in one item. A Mayo Chicken has 0.92g of salt, 31% of that salt limit.
11g of total sugar as published. Boone estimates 11g of it is free sugar, from dextrose, maltodextrin, sugar in the sesame bun, maltodextrin in the plant based burger, sugar in the vegan sandwich sauce, fructose, glucose-fructose in the tomato ketchup: 2.8 teaspoons and 37% of an adult’s 30g daily maximum.
19g, 4.5g per 100 kcal. It ranks #39 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.
11 on the UK Nutrient Profiling Model 2018, calculated by Boone per 100g. Scores run from -20 to 40, and the higher the score, the less healthy the model rates the food. Foods scoring 4 or more would be classed as less healthy under this model.
Yes, NOVA group 4. The ingredient list includes emulsifiers, acidity regulators, preservatives and colours.
As published, wheat, sesame and mustard. Rye, barley and milk 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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