Food Allergies - Symptoms

Symptoms of food allergy can affect many parts of your body, including your:

Children usually have the same symptoms as adults. Symptoms of milk or soy allergies in children may include eczema. Sometimes the only symptoms are extreme crying, vomiting, blood in the stool, diarrhea, constipation, or poor growth.

Symptoms vary from mild to life-threatening and can appear from within minutes to days of eating a food. The most severe reaction is anaphylaxis, which affects many body systems and can be deadly.

Anaphylaxis can start within a few minutes to a few hours after you eat the food. And the symptoms can go away and come back hours later. Common triggers for anaphylaxis are peanuts, nuts, and seafood. In children, peanuts cause anaphylaxis more often than other foods. Aspirin, exercise, or alcohol can increase the risk for anaphylaxis.

There are many other conditions with similar symptoms, such as food poisoning and inflammatory bowel disease.

WebMD Medical Reference from Healthwise
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