Food Allergy Specialists in Maharashtra
Food Allergy is an abnormal immune response that occurs when the body mistakenly identifies a specific food protein as harmful, triggering the release of chemic…
Health Conditions A–Z
LabDekho500+ Diseases & Conditions Explained
Understand symptoms, causes, treatment options and prevention for hundreds of conditions — written for patients, reviewed for accuracy.
What is Food Allergy?
Food Allergy is an abnormal immune response that occurs when the body mistakenly identifies a specific food protein as harmful, triggering the release of chemicals like histamine that cause allergic symptoms. Reactions can range from mild, such as hives or stomach upset, to severe and life-threatening, such as anaphylaxis, and typically occur within minutes to a couple of hours after consuming the trigger food. Common culprits include peanuts, tree nuts, milk, eggs, shellfish, wheat, and soy, though any food can potentially trigger an allergic reaction. Unlike food intolerance, food allergies involve the immune system and can be life-threatening even from trace exposure.
Moderate
Common — affects about 6-8% of children and 4% of adults
No
Causes of Food Allergy
Caused by the immune system mistakenly identifying specific food proteins as harmful invaders and mounting an allergic response upon exposure. Genetic predisposition, particularly a family history of allergies, asthma, or eczema, significantly increases risk, and early childhood exposure patterns are believed to influence which foods trigger allergic sensitization.
Symptoms of Food Allergy
Hives or itchy skin rash, swelling of lips, face, or throat, difficulty breathing or wheezing, abdominal pain, nausea or vomiting, diarrhea, dizziness or fainting, tingling or itching in the mouth, in severe cases anaphylaxis with dangerously low blood pressure
Treatment & Types of Food Allergy in Maharashtra
Strict avoidance of the trigger food is the primary approach to preventing allergic reactions, with antihistamines used to manage mild symptoms when accidental exposure occurs. Individuals at risk of severe reactions must carry injectable epinephrine at all times for emergency treatment of anaphylaxis, and emerging oral immunotherapy is being used to gradually build tolerance in select cases.
Food allergies are classified as IgE-mediated, causing rapid-onset reactions like hives or anaphylaxis within minutes to hours, and non-IgE-mediated, causing delayed reactions affecting the digestive system that can take hours to days to appear, with some conditions showing a mixed pattern. This is distinguished clinically from food intolerance, which does not involve the immune system and typically causes milder digestive discomfort rather than a true allergic reaction.
Allergy & Immunology Specialists in Maharashtra (0)
No specialists listed yet in Maharashtra — browse all doctors instead.
Frequently Asked Questions
What is the difference between a food allergy and food intolerance?
A true food allergy involves the immune system and can be life-threatening even from trace exposure, while a food intolerance, like lactose intolerance, causes digestive discomfort without immune involvement and is generally not dangerous.
Can children outgrow food allergies?
Allergies to milk, egg, wheat, and soy are often outgrown in childhood, while allergies to peanuts, tree nuts, and shellfish tend to be more persistent into adulthood, so periodic re-evaluation with an allergist is worthwhile.
How much of a trigger food can cause a reaction?
For someone with a true allergy, even trace amounts through cross-contamination can trigger a reaction in sensitive individuals, which is why strict avoidance and careful label reading are essential rather than assuming small amounts are safe.
Do I need to carry an EpiPen for a food allergy?
If you or your child has a history of severe reactions or any risk of anaphylaxis, carrying injectable epinephrine at all times is strongly recommended, along with an emergency action plan from your allergist.
Is oral immunotherapy a cure for food allergy?
Oral immunotherapy can build tolerance and raise the threshold needed to trigger a reaction in select patients, but it is not a guaranteed cure and requires careful medical supervision throughout the process.