Quercetin for Allergies – Health Benefits, Side Effects, and Supplements Review

SolarayQuercetinBromelainVitCCan you use quercetin for allergies? Quercetin is a member of a broadly defined group of naturally occurring compounds in certain plants called flavonoids. You can get some quercetin in everything from apples and berries to onions.

Found in the pigment cells of certain fruits and vegetables, quercetin in this type of healthy diet has been shown to have health benefits both in preventing some diseases and minimizing the negative effects of a number of chronic health conditions. Eating a diet high in flavonoids may help lessen the effects of allergens, but it may not be enough of a response when the nose, hives or other swelling are already in full evidence. Then supplements may be needed.

Quercetin For Allergies

Among its health benefits, quercetin can reduce the effects of histamine on the body. When you experience an allergic reaction, one major mediator is histamine, a substance the body releases when it perceives an invader has entered and is attacking. Histamine can cause swelling, flushing, redness, itching, and much discomfort. Common allergens that can release histamine and other allergic mediators like leukotrienes are pollens, animal dander, chemicals, dust, molds, foods and and wide range of other substances.

Most allergic people have more than one allergenic substance, and the actual offenders can change with the seasons, other health problems, medications, and a host of other factors. As a result, avoidance is not always possible. Taking a natural remedy for allergies like quercetin, bromelain, stinging nettles, butterbur and/or grapeseed extract may make a big difference in how you feel.

The allergic reaction varies also dependent upon the person and the trigger. Sometimes the allergy sufferer exhibits skin conditions such as hives or a rash, often with itching. Other times the predominant effect is sneezing and watery eyes.

You may find that your nasal passages swell up or it may become hard to breathe. Extremely severe cases of allergic reactions can progress to anaphylaxis, where several of the body’s systems may shut down, the airways are closed off by swelling, creating a life threatening situation that needs immediate medical treatment. In anaphylaxis, taking quercetin would not be appropriate or enough – rather, you would need emergency medication such as an epinephrine injection.

The most severe cases of allergic reactions should be dealt with by a medical professional, but there is increasing evidence for annoying everyday allergies that quercetin may be able to help, without some of the side affects that have become associated with allergy medicines.

What Are The Health Benefits Of Quercetin In Response To Allergic Reactions?

Quercetin is thought to interfere with the release of the histamines a body produces when the allergen has triggered a response. This mechanism could result in episodes of allergic reactions becoming less common and generally less severe in nature. The anti-inflammatory effect some studies have show for flavonoids may also relieve the swelling that is commonly associated with allergic reactions.

One of the effects of ingesting quercetin is a reduction in inflammation. This is helpful for allergic reactions but also can assist the body’s other defenses when battling a number of other diseases or chronic conditions. There is also growing evidence that the flavonoids In the supplement have an antioxidant effect that may slow or stem the growth of cancer cells and minimize heart disease risk.

In addition to allergies, conditions and diseases for which quercetin may be a viable part of the total therapy include the following:

  • Heart Disease and Elevated Cholesterol Levels
  • High Blood Pressure
  • Interstitial Cystitis
  • Prostatitis
  • Rheumatoid Arthritis
  • Cancer
  • Bone Health

One reason for its versatility in providing health benefits may be that quercetin has more general anti-inflammatory effects, and inflammation is now recognized as a major problem in many different diseases. Quercetin is one of many natural remedies that have antioxidant effects as well. This can protect you from what are called free radicals that regular metabolic activity and biological stresses can cause to damage your cells.

Quercetin Side Effects

Overall quercetin does not have many severe side effects. It may sometimes cause a headache in some people or perhaps tingling in the arms and legs. Extremely high doses have been associated with damage to the kidneys.

People who are extremely allergic to the specific plant source in a particular product may not tolerate one product, but will be fine with another. For those individuals, Solaray makes a specific non-citrus form of quercetin that people with allergies to oranges and other citrus fruits might find better for them.

Quercetin Reviews – Top Supplements

It is important to note that  an enzyme called bromelain, commonly found in fruits like pineapple and other foods high in Vitamin C has also shown promise in helping reduce the distress of allergic reactions when combined with quercetin.

Taking a combination supplement of quercetin, vitamin C, and bromelain all together in one product is one way to get these types of benefits more efficiently. Ensuring that good sources of both types of helpful compounds are regularly in the diet and/or included in a natural remedy program of self care treatment may go a long way to minimizing the distress of seasonal, animal, food and other environmental allergies.

Best Quercetin Supplements from User Reviews for Treating Allergies

Jarrow Formulas Quercetin 500mg 100 pills

Reviewed by more than 200 Amazon consumers with an average of over 4.5 out of 5 stars, this entry retails for about 17 cents per pill. If taken one pill daily, the bottle will last a little over 3 months. Some experts recommend taking 2 pills per day, however, which would translate into a 6 week supply.

Reviewers who rated Jarrow Quercetin with a 4 or 5 for allergy control noted they have reduced itchiness and decreased sinus drainage. Quercetin did not make the user sleepy or groggy, which was a real plus for many who are tired of the tiring effects of some antihistamines.

A reviewer who loved the results noted one pill gave her relief for about 6 hours. Another reviewer shared that taking a divided dosage of 2000 mg (4 pills) over the course of a day eliminated almost all allergy symptoms. This goes to show you how individuals are different in how they respond and how much they need to take to get benefit.

Many of the reviews indicate the supplement has been taken for several years with continuing symptom control and few side effects. A few mention that the positive effects take a few days to weeks to appear fully. Interestingly the few poor reviews the product has received have not mentioned the use was for allergies.

One reviewer felt the price was high, but several others wrote they thought the cost was fair and even half of what they were paying in a health food store.

Now Brand Quercetin with Bromelain – 120 Vcaps (800 mg of Quercetin and 165 mg of Bromelain)

These pills retail for about 13 cents each, with two suggested daily as a dose, a daily cost of 26 cents.

Reviewers are almost all very happy with the results, one calling the supplement “nature’s benadryl.” Taking the supplement over a long period of time again is noted as key, with a few reviewers indicating they either take it daily or 6 weeks before their allergy season for the best control.


Chronic ear ache and sinusitis concerns were cleared, and even a few pets received relief from regular use of the pills.

A reviewer also said that this particular product was interchangeable with other Quercetin supplements, and that this brand was purchased when the price was best.

Sinus & Seasonal Discomfort Formula by LES Labs (60 Vegetarian Capsules with Quercetin, Bromelain, Nettle Root and Butterbur Extracts) (200 mg Quercetin, 150 mg Bromelain, 50 mg Nettle Root and 25 mg Butterbur)

This product was touted by Amazon as being the “Top-Voted” supplement, but only received a few reviews, all very positive. This combination product has many of the leading anti allergy natural remedies all in one capsule.

The additional ingredients may account for some variation in the results. The pills are much more expensive than the others mentioned, about 50 cents each. Reviewers mention itchiness decreased and a great improvement in breathing in sinus drainage.

Holistic Allergy Relief for Pollen Allergies

SneezingWomanTo get holistic allergy relief for pollen allergies, you need to take steps in several different ways to modify your environmental exposures and change how your body reacts to pollens and other allergens.

The first goal is to lower your total load of exposures to specific items that can trigger your sneezing, running nose, coughing, and other miseries of allergy season. The second goal is to use natural remedies to complete your holistic allergy treatment.

Allergies come as an inappropriate excessive reaction from the body’s immune system to a substance in the environment and/or foods to which other people do not usually respond. These substances could range from pollen from plants (grasses, trees, etc), pets, insects, dusts, molds, foods and some medicines. In general these substances are referred to as allergens.

In the presence of an allergen, you may develop some symptoms in the skin, lungs or nose and/or ears. Different people react differently even in the occurrence that the allergen is the same. In turn, remedying an allergic reaction will also differ from one person to the other.

While you cannot completely erase the allergens from your environment, you can take steps to minimize exposures and counter these reactions. While others rush to obtaining synthetic medications from a doctor or the drug store, others believe that a natural allergy remedy is the best way to go. Drugs have risks and can leave you fuzzy headed, dizzy, headachy, and otherwise impaired in your everyday functioning.

Holistic Remedies for Allergies

It probably feels like your head will blow off (well, not really) with your frequent sneezes, itching, sniffling, runny blurry eyes, and pressure in the sinuses. Natural remedies provide relief by preventing the allergen from intrusion rather than waiting for it to come into contact with the body then looking for curative measures.

They can be broken down to preventive and curative holistic remedies for allergies.

Preventive Measures

These measures are better as the body does not necessarily have to come into contact with the allergen in the first place. Some preventive measures include:

Control your Own Environment

You can avoid coming into contact with the allergen by closing windows both at home or, if you are driving, in the car, to prevent allowing some allergens to get into your air space. By so doing, some of the allergens such as pollen would be limited to the outdoor air only. In this, you will be controlling the environment around you.

The next more thorough step is to put in a good air cleaner or filter in your home, especially your bedroom where you spend at least 8 hours or more a day. There are also some car air filters available as well.


Avoidance of certain foods can be essential to control pollen allergies. For instance, foods like milk can cross-react with ragweed in the pollen season. So, do a trial of avoiding the foods that may be causing your allergic reactions. Different people will react to foods containing a given substance. The most commonly known foods to cause allergic reactions include; wheat, milk and other dairy products, corn, peanuts, eggs, fish and shellfish.

Consume Allergy Fighting Foods

Another curative measure is the consumption of allergy fighting foods. Yes! Certain foods we consume can help prevent allergic reactions. Statistics show that persons who consume foods that are rich in omega-3 fatty acids will less likely suffer from allergic reactions as this helps reduce inflammation. Rich sources of this nutrient include as fatty fish like wild salmon (avoid the more toxin-filled farmed salmon) or sardines, walnuts, eggs and flax seed oil.

Observe Simple Hygiene

Depending of the source of the allergen, you must also maintain simple good hygiene both for your pets and yourself. This is very essential if your reaction comes from pets or dust in the home. Pets should be bathed more frequently, and your home should be cleaned thoroughly and vacuumed to remove dust and outdoor pollens that the dog or cat literally dragged in on their fur.

Consider hardwood floors or tile rather than wall to wall carpet. Non-carpet floors can avoid accumulating dust and pollens and are easier to vacuum with an allergy-designed vacuum cleaner to get most of the allergens off the floor and into the bag or vacuum cleaner canister.

Try Acupuncture

This ancient healing technique from the East helps prevent allergic reactions by making the body rebalance the immune system. This is very helpful for seasonal allergies from pollens, dust, grasses, trees, and other allergens. You can start going for acupuncture a month before the pollen season kicks off and be in a stronger state when it arrives. Find a local acupuncturist at Acufinder.com.

Curative Measures

In the event that you have already come into contact with your allergen, then the situation needs to be approached differently. A holistic allergy treatment has to be identified. This will greatly depend on the allergic reaction in question. Some natural treatments for allergies will include:

Air purifier with a HEPA Filter

In an attempt to remove pollen from the air in which you breath,  you can use a HEPA filter which is an air purifier. This leaves clean and non contaminated air to enjoy. This may not exactly control the wider picture but it definitely carry’s out its function around confined rooms. An air cleaner or filter will not be enough if your home environment is loaded with allergens, but it will help a lot if you have removed most of the offending agents in advance.

Saline nasal rinse

This is a solution with a concentrated amount of salt. Once heated, you breathe in the steam. This flushes out the sinuses therefore washing away allergens and any irritants.

Steam inhalation

Steam can be used to open up the airways when breathed into the nose. To make the steam provide a holistic allergy relief, you may need to top up the water with some oils such as eucalyptus essential oil, rosemary essential oil and/or tea tree essential oil. These must be added in the same proportion. They need to be diluted and never applied in concentrated form to your body. This approach can stop the sniffing and sneezing.

Stinging Nettle Leaf Herb for Allergies

The stinging nettle leaf is contained in many natural remedies bought over the counter to treat allergies. Rather than having it in that form, it is better consumed in tea form. Pour boiling water over the teabag and cover the cup for about 15 minutes to steep well. This allows time for the bag to seep out its content before you can drink to treat the allergy.

Homeopathic Remedies for Allergies

Homeopathy can sometimes change your genetic predisposition to express your allergic potential. Some studies have shown that it may be beneficial in pollen allergies and other types of allergic problems associated with runny nose and sneezing. Some homeopathic remedies are good for short term or acute self care, while in the long term, you may want to find a professional homeopath to help with a more lasting cure.

Final Thoughts

Allergies, especially seasonal pollen allergies, need a holistic approach that includes avoidance, environmental control and air filters, and natural or holistic remedies for your allergic reactions. Taken together, the whole integrated package of care can really help you in your season of need.