How can I find information about allergens in my food?

Elimination diet. Try an elimination diet. You'll remove suspected allergens like wheat or dairy for a week, if symptoms improve, try reintroducing them one at a time in 2-3 day intervals. If you react negatively to a food, you may have a sensitivity to that food type. You can also see a provider for "rast" blood testing.
Allergins. You have to read the labels on the products and look for the allergins...The top ones are: milk eggs peanuts tree nuts (such as almonds, cashews, walnuts) fish (such as bass, cod, flounder) shellfish (such as crab, lobster, shrimp) soy wheat.