It specialises in creating kits for food intolerance, autoimmune disease and infectious disease.

BBC: Healthy sales for Omega Diagnostics medical company

Its figures were bolstered by a 15% rise in food intolerance income, while allergy and autoimmune revenues fell by 11%.

BBC: Allergy test firm Omega Diagnostics signs India deal

Still, greater awareness of food allergies has come as restaurant diners ask for lists of ingredients in meals and preparations and more people know someone with another type of food intolerance such as gluten sensitivity.

WSJ: Finding Food Allergy Allies

Also, many cases labelled as food allergy were simply intolerance to food and posed no health threat, he argued.

BBC: peanuts

Have you ever been diagnosed with a food allergy or with lactose intolerance?

CNN: Blind loop syndrome

According to her review, inappropriate food was given to older patients with diabetes, lactose intolerance or had problems with swallowing.

BBC: Public Accounts Committee