If you’re trying to find the best high protein Burger King order, guesswork isn’t good enough — grams of protein vary a lot more between items than most people expect, and the biggest burger on the menu isn’t always the one with the most protein per bite. This guide ranks Burger King UK’s menu by actual published protein figures, not assumptions, so you can pick a high protein Burger King order with confidence.
We’ve also flagged which items give you the most protein per calorie, since a genuinely smart high protein Burger King order is about efficiency, not just raw grams.
The Highest-Protein Standard Burgers on the UK Menu
Based on currently published nutrition data, here’s how Burger King UK’s standard burgers stack up on protein alone, from highest to lowest — useful if you’re weighing up a high protein Burger King order by the numbers rather than guesswork.
| Rank | Item | Protein | Calories |
|---|---|---|---|
| 1 | Bacon Double Cheese XL | 59.9g | 895 kcal |
| 2 | Spicy Mayo Double WHOPPER® | 53.0g | 909 kcal |
| 3 | Double WHOPPER® | 47.8g | 792 kcal |
| 4 | BBQ Steakhouse Angus | 40.3g | 780 kcal |
| 5 | Spicy Mayo Chicken Royale | 27.5g | 640 kcal |
| 6 | WHOPPER® | 28.1g | 567 kcal |
| 7 | Plant-Based WHOPPER® | 26.8g | 542 kcal |
| 8 | Bacon Double Cheeseburger | 22.3g | 331 kcal |
The Bacon Double Cheese XL currently tops the standard burger range at 59.9g of protein, making it the highest-protein burger on the menu right now — for the full breakdown of how it compares against similarly-named items, see the highest-protein burger on the menu comparison. A quick note on naming confusion: some older guides (including one on this site) reference a separate “Bacon King” item with a higher protein figure — that item isn’t currently confirmed as a standard UK menu product, so it’s been left out of the ranking above rather than presented as something you can walk in and order today.
What If You Want to Share? The Sharebox Angle
If you’re ordering for a group rather than one high protein Burger King order, it’s worth knowing the Sharebox carries 34.6g of protein across 891 kcal — solid, but per-person that works out lower than any of the single burgers above once it’s split three or four ways, so it’s a group snacking option rather than a genuine high-protein main.
Best Protein-Per-Calorie: The Smarter High Protein Burger King Order
Ranking by raw protein grams tells only half the story. If you’re watching calories as well as chasing protein, the better question is which items give you the most protein for the least calories — the table below works that out per 100 kcal.
| Item | Protein per 100 kcal | Protein | Calories |
|---|---|---|---|
| Bacon Double Cheeseburger | 6.7g | 22.3g | 331 kcal |
| Bacon Double Cheese XL | 6.7g | 59.9g | 895 kcal |
| Double WHOPPER® | 6.0g | 47.8g | 792 kcal |
| Spicy Mayo Double WHOPPER® | 5.8g | 53.0g | 909 kcal |
| BBQ Steakhouse Angus | 5.2g | 40.3g | 780 kcal |
| WHOPPER® | 5.0g | 28.1g | 567 kcal |
| Plant-Based WHOPPER® | 4.9g | 26.8g | 542 kcal |
The standout here is the humble Bacon Double Cheeseburger — at 331 kcal it’s one of the lightest items on the whole menu, yet it matches the Bacon Double Cheese XL almost exactly on protein efficiency, which makes it arguably the smartest high protein Burger King order if you’re also trying to keep the calorie count down.
Building a Higher-Protein Meal, Not Just a Higher-Protein Burger
The burger is only part of a full order. A few practical ways to push the protein total higher without overthinking it:
- Skip the fries for a protein-forward side. Regular Fries carry only 3.1g of protein; Chilli Cheese Bites (6pc) carry 9.6g for a similar calorie cost.
- Add a side of Halloumi Fries. At 16.4g protein for 5 pieces, they’re one of the highest-protein sides on the entire menu — including the burger range — and a natural add-on to any high protein Burger King order.
- Choose a milk-based drink over a soft drink if you want the extra protein contribution from dairy, keeping in mind that’s also extra calories and an allergen consideration — check the allergen menu first if dairy is a concern.
- Watch the sauces. Extra mayo adds fat, not protein, so it doesn’t move the needle on a high protein Burger King order despite the extra calories.
Before finalising any order, it’s worth a quick check of current menu prices, since combo pricing on the higher-protein items can shift the value case one way or the other.
FAQs | High Protein Burger King Order
What has the most protein at Burger King UK right now?
Based on currently published nutrition data, the Bacon Double Cheese XL has the most protein of any standard burger on the UK menu, at 59.9g.
Is the Bacon King the highest-protein item at Burger King UK?
Not currently — the Bacon King isn’t confirmed as a standard item on Burger King UK’s current menu, so any protein figure attached to it should be treated as historical rather than something you can order today. The Bacon Double Cheese XL is the current highest-protein standard burger.
What’s the best high protein Burger King order if I’m also counting calories?
The Bacon Double Cheeseburger offers close to the same protein-per-calorie efficiency as the Bacon Double Cheese XL, at roughly a third of the calories, making it the more efficient pick.
Are Burger King UK’s chicken items high in protein?
The Spicy Mayo Chicken Royale carries 27.5g of protein, which is respectable but lower than the top beef burgers — chicken items here don’t currently top the ranking.
Is there a high-protein vegetarian or vegan option at Burger King UK?
The Plant-Based WHOPPER carries 26.8g of protein for 542 kcal, making it the strongest plant-based pick on the current menu for anyone building a high protein Burger King order without meat.
Final Thoughts | High Protein Burger King Order
Right now, the Bacon Double Cheese XL is the most reliable answer if you’re after the highest-protein standard burger at Burger King UK, and the Bacon Double Cheeseburger is the smarter high protein Burger King order if calories matter too. Menus and formulations do shift, so it’s worth treating any single-item protein claim — including the ones here — as a snapshot rather than a permanent fact, and checking the app if a specific figure really matters to your goals.