Quercetin View larger


Google Merchant ID:

New product

Quercetin, a potent antioxidant located in a number of plant-based foods, is one of the healthiest ingredients we could ever wish to consume. It's a flavonoid that functions as a potent antioxidant, as well as a natural antihistamine, and a natural anti-inflammatory as well. Read the full product description for more information.

More details

Subscribe To When In Stock
You have successfully subscribed to this product



Add to wishlist

More info


What is Quercetin?

Quercetin is a flavonoid that functions as a potent antioxidant, as well as a natural antihistamine, and a natural anti-inflammatory as well. This potent antioxidant is located in a number of plant-based foods, especially in green leafy vegetables, and certain fruits such as berries and tomatoes. In actual fact, experts refer to Quercetin as a natural plant pigment, which is why it is located within brightly coloured fruits and vegetables. Although Quercetin is found in a number of healthy and natural food sources, many people also choose to supplement with Quercetin to ensure they are getting enough of this amazing nutrient. It can be used for treating heart conditions, hardened arteries, hypertension, high cholesterol levels, viral infections, and much more besides. Quercetin is, without a doubt, one of the healthiest ingredients we could ever wish to consume.

How does it work?

As Quercetin provides so many individual health benefits, it works in a whole variety of different ways. For example, as it functions as a powerful antioxidant, Quercetin helps to provide protection for the cells, helping to fight off and destroy free-radicals, which can cause cellular mutations and can cause our cells to turn cancerous. It does this by preventing a process known as oxidation, which can cause damage to the cells, in a similar way to how food turns rotten when it is exposed to oxygen. It also functions as an anti-inflammatory, so it can help to alleviate pain caused by swelling and inflammation, and it can help to provide protection against conditions brought on via inflammation, such as some forms of cancer, and arthritis. The wonders of Quercetin don’t stop there however, as it also functions as an antihistamine, so it can help to treat and prevent allergies. Histamines are substances that cause irritation and minor damage to cells inside the body, which is why we get painful rashes and swelling when we do have an allergic reaction to something. Antihistamines function by preventing Histamines from damaging the cells, which is exactly what Quercetin does, making it ideal for allergy sufferers.

What are the benefits of using Quercetin supplements?

Some of the primary benefits of Quercetin supplements include the following:

Protects against cancer

As it functions as a powerful antioxidant, Quercetin helps to provide protection against cancer as it destroys free-radicals that can potentially cause cancer, before they have chance to do any lasting damage. It can also prevent cancerous cells from forming and multiplying, making it very healthy indeed.

Cardiovascular benefits

Quercetin is also very heart-friendly and is perfect for anybody that happens to be suffering with cardiovascular issues. The compound prevents the build up of plaque within the bloodstream, plus it helps to lower LDL cholesterol, which is a harmful cholesterol that coats the lining of the arteries. It also lowers blood pressure and has been found to strengthen the arteries.

Great for allergies

For people that suffer with allergies, such as hay fever during the spring and summer, or who are allergic to pets, Quercetin is perfect as it works as a natural antihistamine, helping to alleviate the symptoms associated with allergic reactions.

Other benefits include:

  • Protects against cancer
  • Strengthens the immune system
  • Provides cardiovascular benefits
  • Provides anti-inflammatory properties
  • Alleviates general aches and pains
  • Enhances endurance
  • Provides anti-aging benefits
  • And more...

How and when should it be consumed?

Health Canada Recommended Dose (capsules): Adults: 1 Capsule(s) 2 time(s) per day. Take with food/meals.

What can it be stacked with?

As quercetin is a supplement designed to promote general well-being, it stacks very well with supplements designed to provide similar effects. For example, quercetin stacks very well with: Vitamin C, multi-vitamins, Omega 369 supplements, and glucosamine.

Quercetin Ingredients

Ingredients Per Capsule

Medicinal Ingredients (per capsule): Quercetin (3,3',4',5,7-Pentahydroxyflavone, Quercetin, Styphnolobium japonicum - Flower) ................................. 500 mg
Non-Medicinal Ingredients: Gelatin.

Potential side effects

As with all supplements, always consult your doctor before using any new supplements, and discontinue usage immediately if you experience any adverse side effects or reactions. Pregnant and breastfeeding women should not use this product, as not enough is yet known about its overall safety. Although very safe and beneficial, some users have experienced adverse side effects when supplementing with quercetin, especially when the recommended daily intake was exceeded. Potential side effects associated with this product, include the following:

  • Headache
  • Nausea
  • Stomach cramps
  • Dizzy spells
  • Diarrhea
  • Tingling of the hands and feet
  • Mild numbness


Caution: Not intended for children, pregnant, or breastfeeding women. Consult a healthcare practitioner prior to use. Consult a healthcare practitioner prior to use if you have health conditions. Store in a cool dry place away from children. Do not use if seal is broken.

Allergen warnings

Allergy Statement: This product is made in a facility that handles milk products, gluten, shellfish, soy, peanuts and other tree nuts.

Disclaimer: The above description does not constitute medical advice and is for informational purposes only and has not been evaluated by Health Canada, CFIA, or FDA. Please consult a properly licensed medical professional before consuming nutritional supplements. This product is not intended to treat, diagnose or cure any disease.

Quercetin Reviews

Filter reviews


Verified Buyer

Product Options: Capsules - 90 x 500 mg
David L. on 04/10/2019
N> .B> N.B. Canada
Good product a little messy with the yellow residue!

Verified Buyer

Product Options: Capsules - 90 x 500 mg
Marie G. on 08/09/2019
The postman did not even ring nor knocked at my door, did bring the parcel directly to Post Office. I do not wish to pay for a service that I do not get. Can Canadian Protein make a note of that and assure us of a good delivery system, please?! Thank you.

Verified Buyer

Product Options: Capsules - 90 x 500 mg
Marie G. on 21/06/2019
Fantastic product for allergic reactions ... love it, along with Vit. C, lots of it!

Verified Buyer

Good staff
Product Options: Capsules - 90 x 500 mg
iurii s. on 19/01/2019
As described

Verified Buyer

One of the best antioxydant
Product Options: Capsules - 90 x 500 mg
Marie G. on 20/07/2018
I use this supplement as a antioxidant and as an anti-inflammatory. Also excellent for the lungs, circulation, the brain, sugar level and so much more. I use it everyday.

Verified Buyer

Brad G. on 07/02/2018
Roblin, Manitoba
gelcap form, easy to take. Too soon to tell if it helps, but I am hopeful that it does all it is said to do.

Verified Buyer

Matthew V. on 06/05/2017

Verified Buyer

Patricia F. on 07/01/2017
Not Received yet


Send us your question

questions jeannine on 28/09/2019
Question: Would you have any Quercetin powder available anytime rather than capsules?
Answer: Hi Jeannine, I will enquire about Quercetin for you. I don’t believe we offer the powder at this point however. 

Question about the product

* Required fields

The question has been correctly sent

Stacks Well With