The family of teenager Owen Carey, who died after eating a grilled chicken burger at Byron’s O2 Arena restaurant in 2017, have launched a campaign to improve the labelling of allergens in restaurants, the BBC has reported.

‘Owen’s Law’ would require clear and specific allergen labelling on every restaurant menu. Last month they met with the Food Standards Agency and have written to the Department for Environment, Food and Rural Affairs regarding the law change.

Carey, who had a dairy allergy, had informed staff about his allergy but was not told buttermilk was included. In 2019 a coroner ruled that he was not told about allergens, which had led to his death.

Speaking to Victoria Derbyshire on BBC Radio 2’s Jeremy Vine Show, the family said they had received a letter of apology from Byron’s chief executive but no specific damages relating to his death.

Carey’s father Paul said Byron’s insurers refused to pay any damages – which the family said would have been donated to the charity Anaphylaxis Campaign – and only offered to pay a proportion of the legal and funeral costs.

Paul Carey said: “The buttermilk marinade wasn’t stated on the menu and was not conveyed by the waiter.

“Some customers, young customers, might even be afraid to ask about allergens. If you write in words or symbols on the menu what the allergens are for each dish, nobody has to ask.”

Following the tragedy, Byron updated its menu which originally stated “Chicken - choose yours grilled or fried”, to “Chicken - marinated in buttermilk, choose yours grilled or fried”.

CEO Simon Wilkinson said in a statement: “Even though this happened two years before I was employed by Byron, I have personally taken the responsibility to improve all allergen procedures…

“I am very supportive of any improvements or changes that can be made across the industry to prevent further tragic accidental deaths from occurring and will work with the family accordingly.”