Skip to content

    Allergies Health Center

    Font Size
    A
    A
    A

    Food Allergies - Symptoms

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

    • Digestive system. Symptoms include stomach cramps, nausea, vomiting, diarrhea, itching in the mouth and throat, and rectal bleeding (rare in adults). These symptoms occur more often in children than in adults.
    • Skin. Symptoms include hives camera.gif or welts, swelling, itching, redness, and atopic dermatitis camera.gif. Skin reactions are common in children.
    • Respiratory system. Symptoms include coughing; wheezing; an itchy, stuffy, runny nose; sneezing; and trouble breathing.

    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

    Last Updated: 2/, 014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
    1
    Next Article:

    Today on WebMD

    man blowing nose
    Make these tweaks to your diet, home, and lifestyle.
    Allergy capsule
    Breathe easier with these products.
     
    cat on couch
    Live in harmony with your cat or dog.
    Woman sneezing with tissue in meadow
    Which ones affect you?
     

    blowing nose
    Article
    woman with sore throat
    Article
     
    lone star tick
    Slideshow
    Woman blowing nose
    Slideshow
     

    Send yourself a link to download the app.

    Loading ...

    Please wait...

    This feature is temporarily unavailable. Please try again later.

    Thanks!

    Now check your email account on your mobile phone to download your new app.

    cat lying on shelf
    Article
    Allergy prick test
    VIDEO
     
    Man sneezing into tissue
    Assessment
    Woman holding feather duster up to face, twitching
    Quiz