Is Olive Oil Good for Allergies?
Partly: olive oil can be part of a balanced diet for people with allergies who tolerate it because its fats and plant compounds may influence inflammation, but it is not a proven allergy treatment.
Is olive oil good for allergies?
Olive oil is a food, not a remedy that reliably prevents or relieves allergic reactions. If you enjoy it and have no known reaction to it, you can use it in meals while following your usual allergy care plan.
For a broader look at food choices, see the best foods for allergies. No single food, including olive oil, can be counted on to control allergies or make an allergen safe to eat.
It is also important to distinguish between eating olive oil as part of an overall diet and taking it specifically to manage symptoms. The first may be a practical food choice; the second is not supported as an effective treatment.
How might olive oil affect allergies?
Olive oil contains unsaturated fats and plant compounds, including polyphenols. These components may influence inflammatory processes, but that possibility does not establish that eating olive oil reduces allergic inflammation or symptoms in people.
An allergy involves an immune response to a particular substance, such as pollen or a food protein. Olive oil has not been shown to block that response or protect someone from exposure to their allergen. A change in a general marker of inflammation would not, by itself, demonstrate that allergy symptoms improve.
The amount of plant compounds can vary between olive oils, depending on factors such as processing and storage. There is no established type or amount of olive oil to take for allergy relief.
What does the evidence say about olive oil and allergies?
There is no established clinical evidence that eating olive oil prevents allergic reactions or reliably reduces allergy symptoms. We found no studies demonstrating an allergy benefit from olive oil, so a specific effect or dose cannot be recommended.
Even if research on an isolated olive compound suggests an effect on inflammation, that would not automatically show that ordinary olive oil helps people with allergies. The substance, amount and way it is used may differ from what someone consumes in food.
Olive oil should not replace treatments recommended for hay fever, food allergies or other allergic conditions. If symptoms persist despite your current plan, a clinician can help review the possible triggers and treatment options.
How can you use olive oil if you have allergies?
If you tolerate olive oil, use it as you normally would in food: drizzle it over vegetables, add it to a dressing or use it in cooking. You do not need to drink it or take a special amount for an unproven allergy benefit.
Check the ingredient list on flavored oils and oil blends if you have food allergies. A product may contain ingredients other than olive oil, and those ingredients can matter more to your safety than the oil itself. If you are unsure whether a product is suitable, ask the manufacturer or your allergy clinician.
Keep using prescribed allergy medicines as directed, and ask your clinician before changing your treatment. If you are looking for ways to stay hydrated when allergies are uncomfortable, see the best drinks for allergies; drinks are not a substitute for allergy treatment.
Who should be careful with olive oil?
If you have had a reaction after eating olives, olive oil or a food containing either, do not deliberately try the food again before seeking medical advice. A clinician or allergist can help identify the cause; a reaction after a meal does not automatically prove that olive oil was responsible.
An allergy to olive pollen does not automatically mean you are allergic to olive oil. If you have concerns about a possible olive allergy, ask an allergist for individualized guidance rather than assuming any form of olive oil is safe for you.
If anaphylaxis is suspected—for example, trouble breathing, throat swelling or fainting after exposure—use prescribed epinephrine immediately if available and call emergency services, even if symptoms improve. Do not wait to see whether olive oil or another food helps.
For a child with a suspected food allergy, speak with a pediatrician or allergist before offering the suspected trigger again. During pregnancy, olive oil can generally be used as a food if tolerated, but discuss persistent allergy symptoms or proposed supplements with a clinician. Do not put olive oil in the eyes or nose as an allergy treatment.
Frequently asked questions
Does extra-virgin olive oil have more polyphenols than refined olive oil?
Extra-virgin olive oil generally contains more polyphenols than refined olive oil, although amounts vary. That does not make it a proven allergy treatment.
Can someone with a peanut allergy use olive oil?
A peanut allergy does not automatically mean a person is allergic to olive oil. Check labels on blends and follow your allergist’s advice about ingredients and cross-contact.
Does cooking make olive oil safe for someone allergic to it?
Do not rely on cooking to make olive oil safe if you have a suspected or diagnosed olive allergy. Ask an allergist for advice before consuming it.