London - Nut allergy sufferers are at greater risk of a dangerous reaction if they have not slept well or have taken strenuous exercise, research has found.
More than 126 people with peanut allergies were given increasing amounts of peanut flour to eat until they had an allergic reaction, which was treated quickly. This was repeated when they were exercising and when they were deprived of sleep.
The findings of the study, funded by the Food Standards Agency (FSA) and carried out at Addenbrooke’s Hospital, Cambridge, have been described as "hugely significant" given one in every 50 children has a potentially-fatal peanut allergy.
The FSA has been trying to improve allergen labelling following the death of Natasha Ednan-Laperouse, 15, after eating a Pret a Manger baguette.