See list below. The most common food allergens are egg, milk, wheat, soy, peanuts, tree nuts and shellfish. Keep in mind that this does not mean other foods can be the cause of food allergies. For example, over the past few years it has become clear that some individuals can be allergic to meats.
A few additions. Most common: milk & dairy (including goat's milk), egg, wheat (white flour), peanut, tree nuts, fish, crustaceans (shrimp, crab, lobster, prawn, crayfish), soy, corn. With changing american cuisine sesame has emerged as number 9. Raw fruits & vegetables (apple, carrot, citrus, peach, melon, etc) are often implicated as triggers of oral allergy syndrome in those allergic to birch & ragweed pollen.
Well Documented. The most common food allergies are well documented by previous responses. While true food allergy reactions are growing exponentially with new diagnoses of peanut allergy every day also on the rise are cases of oral allergy syndrome. This involves symptoms of mouth itching, rash around the mouth and in some cases burning of the mouth due to foods which cross react with allergenic pollens.
The "big 8" Only 6 to 8% of children have a true food allergy, and many will outgrow them. About 80% of food allergies are to the following eight foods: milk, egg, soy, wheat (all of which are commonly eventually outgrown) and peanut, tree nut, fish, and shellfish (all of which are usually not outgrown).
Peanuts, milk, wheat. Peanuts, milk, egg, wheat, and soy.