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Doctor insights on: Caffeine Allergy Symptoms

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What are the symptoms of a caffeine allergy?

What are the symptoms of a caffeine allergy?

Not "allergy": Caffeine acts more like a chemical and not l ike an allergen, it does not cause immune reactions, but as a chemical has numerous effects on the cardiac and nervous systems such as jitteriness, nervousness, increased intestinal motility, and so on. ...Read more

Dr. John Chiu
2,479 doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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Is a caffeine allergy possible?

Is a caffeine allergy possible?

Very unlikely.: I hesitate to say impossible, but caffeine allergy is very highly unlikely. Allergy is typically to a protein. There are some exceptions, however I do not know of a case of proven caffeine allergy. ...Read more

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Is there any medication for someone with caffeine allergy?

Is there any medication for someone with caffeine allergy?

Distinctly rare: Caffeine allergy is distinctly rare. It is reported in the literature but these are only rare case reports. As with food allergy, treatment is avoidance. ...Read more

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How would I go about confirming a caffeine allergy/ intolerance? When I consume caffeine I have what seems to be an anaphylactic reaction.

How would I go about confirming a caffeine allergy/ intolerance? When I consume caffeine I have what seems to be an anaphylactic reaction.

Distinctly Unusual: Caffeine allergy is unusual but has been reported in the literature. After speaking to your allergist and clarifying your history, there are several options that could be explored. Skin testing could be done but there is no standardized skin test reagents for caffeine thus the results must be interpreted with care. Oral challenges could be considered but only with your physicians supervision. ...Read more

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How do I know if I have a caffeine or coffee allergy?

How do I know if I have a caffeine or coffee allergy?

Distinctly rare: Caffeine allergy is distinctly unusual. There have only been case reports and it is not entirely clear that these were true ige mediated reactions. There is some guidance in literature on how to test for suspected caffeine allergy. ...Read more

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If a person has an allergy towards coffee is it normally the coffee itself or the caffeine?

If a person has an allergy towards coffee is it normally the coffee itself or the caffeine?

Unlikely: Coffee allergy is rare if ever existed. You will need to tell us the symptoms from drinking coffee. There had been reports that occasionally coffee beans were contaminated with castor bean which can cause a contact allergy. Caffeine is not an allergen. ...Read more

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I have anxiety. Is it possible to have an allergy to caffeine? If I only have 1 cup of coffee a day I've noticed an increase in shakiness and headrush

Anxiety and Caffeine: Some people are very sensitive to the effects of caffeine and it causes physical changes that are often confused with anxiety. This sensitivity is not a true allergy but is an understandable connection. ...Read more

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Why after a cup of tea i felt cold flu and restless accompany by dizziness.am i allergy to caffeine or tea leave?

Perhaps the caffeine: is causing you anxiety. Some people experience this and it's not a true allergy, but the response of being overstimulated from the Caffeine. Try and cut back or go decaf. ...Read more