Food Allergy

All of us eat to survive, and most of us enjoy eating. However, recent studies have found that almost 1 in 20 young children under the age of 5 years and almost 1 in 25 adults are allergic to at least one food. Other studies indicate that food allergy, especially allergy to peanut, is on the rise. As a result, more and more people are becoming aware of food allergy, making it a subject of increasing public concern. Food allergy is an abnormal response to a food triggered by the body’s immune system. There are several types of immune responses to food. The response may be mild or in rare cases it can be associated with the severe and life-threatening reaction called anaphylaxisAn allergic reaction to food usually takes place within a few minutes to several hours after exposure to the allergen.

Symptoms of Food Allergy
  • Skin—itching, hives, redness, swelling
  • Nose—sneezing, stuffy nose, runny nose
  • Mouth—itching, swelling of lips or tongue
  • Throat—itching, tightness, difficulty swallowing, hoarseness
  • Chest—shortness of breath, cough, wheeze, chest pain, tightness
  • Heart—weak pulse, passing out, shock
  • GI tract—vomiting, diarrhea, cramps
  • Nervous system—dizziness or fainting

In infants and children, the most common foods that cause allergic reactions are

  • Egg
  • Milk
  • Peanut
  • Tree nuts such as walnuts
  • Soy (primarily in infants)
  • Wheat

In adults, the most common foods that cause allergic reactions are

  • Shellfish such as shrimp, crayfish, lobster, and crab
  • Peanut
  • Tree nuts
  • Fish such as salmon

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List of Top Diet Topics

Anorexia Nervosa

Binge Eating


Diabetic Diet

Digestive System

Eating Out

Food Allergy

Heart Healthy Diet


Myths about Diet

Organic Food

Sample Diets

Top Diet Tips

Vegetarian Diet



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