Fact: No single food allergy poses a greater threat than another. While nine foods (milk, egg, peanut, tree nuts, soy, wheat, fish, shellfish and sesame) account for the vast majority of food allergies, virtually any food can cause an allergic reaction. And even a very small amount of the problem food is enough to cause a reaction.

https://www.foodallergy.org/resources/food-allergy-myths-and-misconceptions