O'Neill's UK Seed Oil Report Card
Based on our menu research, O'Neill's UK cooks with: rapeseed (vegetable) oil in the fryers, the Mitchells & Butlers estate standard shared with All Bar One, Harvester and Toby Carvery; the seasoned chunky chips, waffle fries, Magners-battered fish, wholetail scampi, southern-fried chicken fillets, chicken tenders, halloumi fries, panko calamari, beer-battered mushrooms, spring rolls and battered onion rings all come out of the same rapeseed fryers, and the burger sauce, buttermilk ranch, tartare, Sriracha mayo, coleslaw and houmous are rapeseed-oil emulsions, so the burgers (all served WITH chunky chips) and the loaded waffle fries carry by far the most PUFA; chargrilled grills, gammon, sausage & mash and the sticky puddings are butter/beef-led and score much lower. Across the 40 menu items we analyzed, it averages 13.6g estimated PUFA per item, earning a seed-oil grade of F (Extreme Risk).
Ask O'Neill's UK to drop seed oils
Be the first to ask. The running total is public, so every tap adds real pressure.
One tap, anonymous, no signup. We keep each chain's total public so the demand is impossible to ignore.
Safest Orders at O'Neill's UK
Learn this once: a salad with grilled protein and the dressing left off is nearly always the lowest seed oil order anywhere. So the list below sticks to real meals, salads included, never just a water.
Cleanest full order: Steak & Guinness Pie + Guinness Draught (Pint), 8.0g total
| Item | PUFA |
|---|---|
| Guinness Draught (Pint) | 0.0g |
| Sticky Toffee Pudding | 3.0g |
| Grilled Chicken Rice Bowl | 6.0g |
| Panko-breaded Calamari Strips | 8.0g |
| Steak & Guinness Pie | 8.0g |
What to Avoid at O'Neill's UK
| Item | PUFA |
|---|---|
| Loaded Waffle Fries with Crispy Chicken Tenders | 30.0g |
| Fisherman's Platter | 26.0g |
| Smothered Chicken | 26.0g |
| Southern Chicken Ranch Burger | 24.0g |
| Katsu Chicken Burger | 22.0g |
Every O'Neill's UK item, ranked
All 40 items we have for O'Neill's UK, safest first. Values are estimated grams of seed-oil PUFA per item.
| Item | PUFA |
|---|---|
| Guinness Draught (Pint) | 0.0g |
| Baileys Ice Cream Sundae | 3.0g |
| Sticky Toffee Pudding | 3.0g |
| Guinness Brownie | 5.0g |
| Grilled Chicken Rice Bowl | 6.0g |
| Panko-breaded Calamari Strips | 8.0g |
| Seasoned Chunky Chips | 8.0g |
| Steak & Guinness Pie | 8.0g |
| Margherita Pizza | 9.0g |
| Lasagne | 9.0g |
| Waffle Fries | 9.0g |
| 8oz Rump Steak | 10.0g |
| Crispy Chicken Tenders | 10.0g |
| Salt & Pepper Prime Chicken Wings | 11.0g |
| Fish Finger Wrap | 11.0g |
| Classic Mixed Grill | 12.0g |
| Drunken Mushrooms | 12.0g |
| Sausage & Mash | 12.0g |
| Pepperoni Pizza | 12.0g |
| Halloumi Fries | 12.0g |
| Chicken Fillet Roll | 14.0g |
| Meat Feast Pizza | 14.0g |
| Guinness Glazed BBQ Ribs | 14.0g |
| Houmous & Flatbread | 14.0g |
| Cheese & Bacon Burger | 14.0g |
| Ranch Chicken Salad | 14.0g |
| Shiitake Mushroom Burger | 15.0g |
| Fish & Chips | 16.0g |
| Sharing Nachos | 16.0g |
| Battered Onion Rings | 16.0g |
| Notorious P.I.G. Burger | 18.0g |
| The Mighty Guinness Burger | 18.0g |
| Scampi & Chips | 18.0g |
| Fiery Buffalo Chicken Stack Burger | 21.0g |
| Katsu Chicken Burger | 22.0g |
| Hot Honey Chicken & Bacon Burger | 22.0g |
| Southern Chicken Ranch Burger | 24.0g |
| Fisherman's Platter | 26.0g |
| Smothered Chicken | 26.0g |
| Loaded Waffle Fries with Crispy Chicken Tenders | 30.0g |
Frequently asked
Does O'Neill's UK use seed oils?
Based on our menu research, O'Neill's UK cooks with: rapeseed (vegetable) oil in the fryers, the Mitchells & Butlers estate standard shared with All Bar One, Harvester and Toby Carvery; the seasoned chunky chips, waffle fries, Magners-battered fish, wholetail scampi, southern-fried chicken fillets, chicken tenders, halloumi fries, panko calamari, beer-battered mushrooms, spring rolls and battered onion rings all come out of the same rapeseed fryers, and the burger sauce, buttermilk ranch, tartare, Sriracha mayo, coleslaw and houmous are rapeseed-oil emulsions, so the burgers (all served WITH chunky chips) and the loaded waffle fries carry by far the most PUFA; chargrilled grills, gammon, sausage & mash and the sticky puddings are butter/beef-led and score much lower. Across the 40 menu items we analyzed, it averages 13.6g estimated PUFA per item, earning a seed-oil grade of F (Extreme Risk).
What oil does O'Neill's UK cook with?
Our research indicates: rapeseed (vegetable) oil in the fryers, the Mitchells & Butlers estate standard shared with All Bar One, Harvester and Toby Carvery; the seasoned chunky chips, waffle fries, Magners-battered fish, wholetail scampi, southern-fried chicken fillets, chicken tenders, halloumi fries, panko calamari, beer-battered mushrooms, spring rolls and battered onion rings all come out of the same rapeseed fryers, and the burger sauce, buttermilk ranch, tartare, Sriracha mayo, coleslaw and houmous are rapeseed-oil emulsions, so the burgers (all served WITH chunky chips) and the loaded waffle fries carry by far the most PUFA; chargrilled grills, gammon, sausage & mash and the sticky puddings are butter/beef-led and score much lower. Preparation can vary by location, so treat PUFA numbers as estimates.
Does O'Neill's UK use beef tallow?
No. Our research indicates O'Neill's UK cooks with rapeseed (vegetable) oil in the fryers, the Mitchells & Butlers estate standard shared with All Bar One, Harvester and Toby Carvery; the seasoned chunky chips, waffle fries, Magners-battered fish, wholetail scampi, southern-fried chicken fillets, chicken tenders, halloumi fries, panko calamari, beer-battered mushrooms, spring rolls and battered onion rings all come out of the same rapeseed fryers, and the burger sauce, buttermilk ranch, tartare, Sriracha mayo, coleslaw and houmous are rapeseed-oil emulsions, so the burgers (all served WITH chunky chips) and the loaded waffle fries carry by far the most PUFA; chargrilled grills, gammon, sausage & mash and the sticky puddings are butter/beef-led and score much lower, not beef tallow. For chains that fry in tallow or other real fats, see Tallow Watch.
Is O'Neill's UK seed oil free?
Largely yes. Our research indicates O'Neill's UK cooks with rapeseed (vegetable) oil in the fryers, the Mitchells & Butlers estate standard shared with All Bar One, Harvester and Toby Carvery; the seasoned chunky chips, waffle fries, Magners-battered fish, wholetail scampi, southern-fried chicken fillets, chicken tenders, halloumi fries, panko calamari, beer-battered mushrooms, spring rolls and battered onion rings all come out of the same rapeseed fryers, and the burger sauce, buttermilk ranch, tartare, Sriracha mayo, coleslaw and houmous are rapeseed-oil emulsions, so the burgers (all served WITH chunky chips) and the loaded waffle fries carry by far the most PUFA; chargrilled grills, gammon, sausage & mash and the sticky puddings are butter/beef-led and score much lower, which is not an industrial seed oil. Preparation can vary by location.
What is the safest thing to order at O'Neill's UK?
Guinness Draught (Pint) is the lowest-PUFA item we analyzed at O'Neill's UK, at an estimated 0.0g PUFA. See the Safest Orders list on this page for more options.
What should I avoid at O'Neill's UK?
Loaded Waffle Fries with Crispy Chicken Tenders is the highest-PUFA item we analyzed at O'Neill's UK, at an estimated 30.0g PUFA. Fried items and creamy, mayo-based sauces are usually the heaviest.
What are seed oils?
Seed oils — canola, soybean, sunflower, corn, and similar vegetable oils — are extracted from seeds using high heat and chemical solvents. They are very high in polyunsaturated fats (PUFAs), which are unstable at cooking temperatures and can oxidize easily. Many health-conscious eaters choose to minimize seed oils and prefer foods cooked in beef tallow, butter, coconut oil, or olive oil instead. This page shows estimated PUFA grams per menu item to help you make more informed choices. These are estimates — actual values vary by preparation and location. New to the topic? Start with what seed oils are and the complete list, or read the evidence on why people avoid them.
Compare other chains
MyLahore · Nando's · Nicholson's · Ole & Steen · Oodles Chinese · PAUL
See where O'Neill's UK lands on the full Seed Oil Index, or check which chains cook in real fats on Tallow Watch. Wondering about a specific dish instead? The Is It Seed Oil food guide answers it for 200+ everyday foods, and the distributor oils page covers what independent restaurants fry in.