Food allergens are typically naturally-occurring proteins in foods or derivatives of them that cause abnormal immune responses, sometimes even life-threatening reactions in sensitized individuals. Scientists estimate that approximately 2 – 4 % of adults and 6 – 8 % of children suffer from food allergies as well as the huge number of persons with food intolerances. 90% of all food allergies are caused by the following 8 foodstuffs: milk, eggs, peanuts, fish, shellfish, tree nuts, wheat and soy.