If not properly identified and treated, food allergies can potentially be fatal. The most common food allergies include peanuts, shellfish, tree nuts, wheat, corn, soy, and cow’s milk. Those with food allergies must carefully monitor their dietary habits to avoid those foods they are allergic to, especially if those foods may be life-threatening. For example, children with a peanut allergy cannot be exposed to even a trace amount of peanuts, such as its dust, to avoid a potentially fatal reaction. Food allergies are often confused with simple intolerances, such as lactose intolerance that causes bloating or stomach pain when drinking milk. But people who are allergic to milk suffer wheezing, vomiting, hives and severe digestive problems. Determining the difference between an allergy and an intolerance may be the difference between life and death.