Home Insect Allergies Allium Allergy Information | Allergy Take a look at

Allium Allergy Information | Allergy Take a look at


Alliums are a core ingredient in most households. Whether or not it’s dinner or lunch, you’re possible to make use of alliums in your curry, stir fry, and even salads. Most vegetation within the allium household are onion-like (to place issues into perspective). These vegetation and species embody onions, leeks, garlic, shallots, scallions, and chives. These examples make it simple to acknowledge as a result of most of them share the identical physique kind. They’ve grass-like leaves that each one emerge from one level on a thickened stem or bulb and fleshy roots from a small space on the decrease elements of the plant. These vegetation can bloom, and their blooms consist of 1 stalk with an explosion of small flowers on the tip. The allium species aren’t all edible, as some might fall into the class of flowers.

In america alone, 400 million kilos of garlic is grown every year (1). From garlic bread to onion rings, it’s clear that alliums are the star of most beloved dishes. Nonetheless, irrespective of how wonderful these vegetation are in including flavour to our meals, they will supply a risk to those that undergo from an allium allergy. Inside our allium allergy information, we’ll talk about signs of allergy symptoms and intolerances, in addition to learn how to check for the 2.


Allium Allergy Listing

The genus allium consists of 600-920 species, making it onerous to record all of those vegetation. Contemplating how frequent alliums are in meals, it’s possible that when you have an allergy you’ll have skilled signs by now. For some folks, if they’ve a critical allergy they could expertise signs after inhaling the odor of an allium or touching it. To call alliums that we encounter every day, they embody:

  • Onions.
  • Shallots.
  • Garlic (even wild garlic).
  • Leeks.
  • Chives.
  • Scallions (spring onions).


Onion Allergy

A meals allergy usually happens when your immune system errors the protein in sure meals for dangerous substances equivalent to micro organism or viruses. After this error, your immune system releases chemical substances equivalent to histamines, inflicting the standard meals allergy signs that we frequently witness.

When affected by an onion allergy, it’s possible that you simply’ll be allergic to all varieties of onions, whether or not it’s spring onions, wild onions, pink onions, or white onions. Cooking down onions doesn’t forestall you from experiencing allergy signs, both. An onion allergy might be very difficult to deal with, so the primary recommendation to somebody affected by an allergy is to keep away from onions in all of your meals, whether or not cooked or uncooked. When onions are evenly cooked or uncooked, it will increase the probabilities of experiencing anaphylactic shock, a extreme response that can lead to demise if not handled rapidly {1}.


How frequent is onion allergy?

Research present that onion allergy is unusual in comparison with different meals allergy symptoms and onion intolerance. So, there are only a few folks affected by onion allergy symptoms. Whereas the probabilities are low, it doesn’t essentially imply one can’t undergo from onion allergy. Should you’re not sure whether or not your signs are brought on by onions or one other kind of meals, you possibly can full a house allergy check which analyses your pattern towards the commonest allergens. Primarily based in your outcomes from our laboratory, it is possible for you to to rule out 38 fashionable causes of allergy symptoms.


Garlic Allergy

Garlic usually provides a pungent and savoury flavour to meals when added. Nonetheless, a garlic allergy makes it harmful for these people to eat it. Garlic is a really unusual kind of allergy and solely impacts a small inhabitants of individuals across the globe.


Garlic and onion allergy signs

Signs of onion allergy and garlic allergy range from one particular person to the following. These allium intolerance signs can vary from delicate to extreme. They embody:

  • Hives or a rash.
  • Nasal congestion.
  • Problem respiratory.
  • Nausea and vomiting.
  • Tingling or itching within the mouth.
  • Dizziness or lightheadedness.
  • Swelling of the lips, face, tongue, or throat.
  • Abdomen ache.
  • Anaphylaxis, though that is uncommon.

A symptom like anaphylaxis is life-threatening and requires quick medical consideration. These garlic and onion allergy signs present inside a couple of minutes to 2 hours of consumption. You may also end up having these allium allergy signs if you happen to undergo from mugwort allergy (or different allergy symptoms particularly ones inflicting oral allergy signs) as a result of cross-reactivity that occurs throughout pollination season {2}.

Our Allergy 35 Take a look at Package.

How you can deal with garlic allergy signs

We frequently eat garlic with different elements and meals. For instance, when consuming garlic bread, there are different elements in it, like wheat, gluten, yeast, and others. In such instances, it may be onerous to pinpoint the true offender, and the identical occurs once you eat soups. Nonetheless, you possibly can slender down your search by taking an Allergy Take a look at, which checks by a listing of frequent meals allergy symptoms and finds an answer by pinpointing the primary culprits. Should you ever expertise anaphylaxis, your physician will suggest an EpiPen, which it’s best to all the time carry with you in every single place.


Allium Intolerance

Allium intolerance is an IgG response brought on by problem digesting some meals, and on this case, alliums. When having allium intolerance, it means you can even have disagreeable bodily reactions to them. Some folks lack sure enzymes required to digest proteins in some meals. When affected by allium intolerance, you’ll discover that allium intolerance signs will present inside a couple of hours to some days. That’s as a result of meals wants to achieve the colon for the signs to indicate up.

Due to how lengthy intolerance signs take to indicate, it’s onerous to find out which meals is inflicting signs as a result of, by then, you’ll have eaten different meals. Allium intolerance usually results in uncomfortable gastrointestinal signs. That’s as a result of in case your physique doesn’t digest these elements, they get moved to the colon, the place they ferment and kind fuel. This ends in constipation, fuel, bloating, abdomen ache, and far more. Not like allium allergy, this isn’t life-threatening however might be fairly uncomfortable.

One other distinction between allium allergy and intolerance is the place they have an effect on. Allium intolerance usually impacts the gastrointestinal tract, whereas allium allergy impacts the physique’s immune system. And whereas intolerance signs take some time to indicate, allergy signs don’t take lengthy. You’ll additionally discover that almost all intolerance signs final so long as that meals is in your abdomen. When you cross it, the signs usually disappear. Nonetheless, in allium allergy, some signs can last more even after your physique has rid of that meals.


Allium intolerance signs

Undiscovered allergy symptoms could cause painful abdomen points.

The severity of allium intolerance signs varies from one particular person to the following. You’ll usually discover that some folks expertise the signs shortly after consuming the meals, whereas others take days to see the signs. These signs embody:

  • Abdomen ache.
  • Swelling of tongue, lips, and throat.
  • Itchy mouth or lips.
  • Nasal congestion.
  • Diarrhoea
  • Flatulence.
  • Nausea or vomiting.
  • Rash or hives.


Should you undergo from these signs and suppose they might be as a result of alliums, then it’s endorsed so that you can full an Intolerance Take a look at. This check equipment will allow you to search for all frequent meals intolerances in your system, together with garlic and onions. You’ll then have a listing of meals to keep away from. Earlier than taking a check, you would seek the advice of your physician so that they search for any underlying situations that might be inflicting these signs. But when your physician agrees that they suppose you’ve gotten a meals intolerance, this check will allow you to to slender down which meals are inflicting your signs.


Allium meals to keep away from

When affected by allium allergy or allium intolerance, there are particular meals that it’s essential to keep away from. Everyone knows that plenty of meals are ready utilizing alliums as a base, particularly garlic and onions. Due to this, it’s essential to watch out when consuming out since meals like curries are filled with alliums, so be certain that to inform the restaurant workers about your allergy. When meals procuring, you additionally want to have a look at ingredient lists. For instance, shopping for prepared meals or pre-seasoned meat is probably to include alliums for flavourings.

Additionally, try the elements in sauces, seasonings, and soups. Since alliums are nice for including flavour, they’re prone to be an ingredient inside these meals. When affected by an allium allergy, making certain you keep away from alliums in any respect prices must be your aim, primarily as a result of consumption might result in extreme signs touchdown you within the hospital. When affected by allium intolerance, you would keep away from these elements as a part of an elimination weight-reduction plan. An elimination weight-reduction plan helps you fully lower off that meals out of your weight-reduction plan. After the beneficial period of time, you’ll reintroduce them and see how far more your system can tolerate that meals.

Managing an allium allergy or intolerance might be troublesome as a result of their prevalence in most meals. Nonetheless, so that you can cease experiencing uncomfortable signs, it’s endorsed that you simply keep away from alliums. Should you’re not sure whether or not you’re experiencing allergy or intolerance signs and would really like extra recommendation, please get in contact with our help staff who will likely be joyful to assist.


Concerning the Creator

Felicia Oladipo is our Laboratory Supervisor and joined in September 2022. She graduated from the Middlesex College  with an MSc in Biomedical Science (Scientific Biochemistry). Beforehand she explored strategies on Molecular Diagnostics throughout her time working in a COVID laboratory from 2020 to 2022. Inside Wholesome Stuff, Felicia works intently with the Laboratory Supervisor and strives to make sure that the laboratory runs effectively. Try her profile right here.




  1. Karyn Moyer, 400 Million Kilos of Garlic Grown in U.S. Yearly
  2. Enviornment, A., Cislaghi, C., & Falagiani, P. (2000). Anaphylactic response to the ingestion of uncooked onion. A case report. Allergologia et immunopathologia, 28(5), 287–289.
  3. Popescu F-D. (2015). Cross-reactivity between aeroallergens and meals allergens. DOI: 10.5662/wjm.v5.i2.31