Hazel has had severe allergies to nuts and peanuts since early childhood. She was involved in shaping the Anaphylaxis Campaign from 1994 and established Allergy Action as a research and training consultancy in 2000. She investigates fatal and ‘near miss’ allergic reactions, providing guidance and family support, supplying data to UK Fatal Anaphylaxis Registry and undertaking research examining regulatory aspects of consumer protection for those at risk.
She lectures on university Allergy and Nutrition programmes and continues to shape and deliver allergen management consultancy and training with leading suppliers, manufacturers, caterers and a wide range of food business operators including schools, universities, hospitals and care workplaces. She is a member of the Scientific Committee of the IFST and the Food Special Interest Group of the RSPH, and has recently been appointed as to the island of Ireland Safefood Knowledge Network Expert Group.