Why Quercetin is the Best Supplement you've Never Heard Of + The 5 Best Online

It's the age-old question: which quercetin supplement is best? There are so many brands on the market, and they all claim to be the best. So, how do you choose? This blog post will help you sort out the facts from the fiction and make an informed decision about what is the best quercetin to take, plus we'll show you our 5 best picks on Amazon & iHerb.

Quercetin is not a supplement that's marketed to the masses. It's not something that you'll see Onnit or Cellucor pushing on their social media channels. It's not even something that your local GNC carries. But that doesn't mean it's not important. In fact, quercetin may very well be the most important supplement that you're not taking.

What is Quercetin?

Quercetin is a type of flavonoid, which is a plant pigment that has been shown to have antioxidant and anti-inflammatory properties. Some research suggests that quercetin supplements can help to improve exercise performance, reduce allergies, and boost immunity. However, more research is needed to confirm these effects.

Why Should You Take It?

There are two main reasons why you should take quercetin:

• To improve your athletic performance and
• To support your immune system.

Athletic Performance

Quercetin has been shown to increase VO2 max—a measure of how much oxygen your body can utilize during exercise—and decrease recovery time. In one study, cyclists who took quercetin were able to ride for longer before reaching exhaustion than those who didn't take the supplement. The exact mechanism by which quercetin improves performance is unknown, but it's thought to have something to do with its ability to reduce inflammation.

Immune System Support

Quercetin has also been shown to boost immunity. One study showed that those who took quercetin were less likely to get sick after being exposed to a virus than those who didn't take the supplement. It's thought that quercetin does this by reducing inflammation and histamine production.

How to Choose a Quercetin Supplement

When choosing a quercetin supplement, it's important to consider a few factors: purity, potency, and bioavailability. Purity refers to the amount of quercetin actually present in the supplement; potency refers to the strength of the quercetin, and bioavailability refers to how much of the quercetin is absorbed by your body. Ideally, you want a pure, potent, and bioavailable supplement.

There are many brands of quercetin supplements on the market, so how do you know which one to choose? A good place to start is by reading online reviews. Look for products that have mostly positive reviews and that are created by reputable companies. Once you've narrowed down your options, it's a good idea to speak with your doctor or a registered dietitian before making a final decision.

Below are our 5 picks for the best quercetin supplements available online:

Pick Number 1

Amazing Formulas Quercetin - 500 Mg, 120 Veggie Capsules

Why We Like It?
+29,300 ratings
4.7  out of 5.0 stars
3% 1 & 2 stars
Amazing Formulas Quercetin capsules provide 500mg of this potent nutrient as Quercetin Dihydrate, which has been shown to neutralize the damaging effects of free radicals and oxidative stress. Quercetin also provides anti-inflammatory benefits, helping to reduce pain associated with inflammation. Additionally, its anti-histamine properties promote respiratory health and offer relief from allergies. Plus, Quercetin supports cardiovascular health and helps increase the body's performance and endurance.

I’m actually surprised that this works as well as it does! I have chronic nerve and muscle pain, and this has really made a difference in helping with inflammation and pain.

This brand features Quercetin Dihydrate, which from what I've read, is absorbed by the body the best over other forms of it. That's why I chose it.

Pick Number 2

Sandhus Zinc Quercetin 120 Vegetarian Capsules

Why We Like It?
+15,500 ratings
4.8  out of 5.0 stars
2% 1 & 2 stars
With 60 Servings per bottle, this supplement is perfect for those who want to stay healthy all season long. Not only does it support immune system health, but it also promotes cardiovascular and respiratory health. So whether you're looking to avoid getting sick or just want to improve your overall health, Sandhus Zinc Quercetin is a great choice. Plus, it's vegetarian and made in the USA.

I haven't gotten sick since I started taking this in April, 2021.

Keeps me healthy!

Hope it is working, but can say that I haven't had a cold since I started taking it.

Pick Number 3

NOW Supplements, Quercetin with Bromelain

Why We Like It?
+8,00 ratings
4.7 out of 5.0 stars
3% 1 & 2 stars
Check out NOW Quercetin with Bromelain! Quercetin is a powerful antioxidant that helps fight free radicals, while bromelain is a natural enzyme that helps support a balanced immune response. Together, they make a potent team that can help you stay healthy all season long. Plus, this quercetin is non-GMO, soy-free, vegan/vegetarian, nut-free, and gluten-free.

I've been taking this for about 3 months now. I absolutely love it. It's helped me feel better in multiple ways.

Help me clear my lungs after having a bad head cold n cough.

It has really helped my asthma. I’m no longer on my prescription inhaler.

Didn't work for me.

Hate the smell.

Pick Number 4

Clean Neutraceuticals Quercetin - 1000mg - Zinc 50mg - Vitamin C 1000mg - Vitamin D and More

Why We Like It?
+2,900 ratings
4.6 out of 5.0
4% 1 & 2 stars
When it comes to maintaining a strong and healthy immune system, don't settle for anything less than the best! Clean Neutraceuticals' Quercetin 1000mg Zinc 50mg Vitamin C 1000mg Vitamin D supplement is exactly what you need to keep your body in top condition all year round.

This18-in-1 immunity complex comes in a convenient 30-serving bottle, so you know you're getting enough of the essentials to keep you well and healthy for a whole month! Not only will our blend bolster your immune system, but it will also aid in improving cardiovascular health, inflammation levels, respiratory health, gut health, joint health, and more!

Plus, Clean Nutraceutical's rapid absorbing formula ensures that these powerful immune system-supporting ingredients go to work fast, protecting you from seasonal ailments while boosting your body's defenses for months to come. Don't wait until you get sick to start thinking about your immune system - make Q-Defend Immune Support Complex part of your daily routine and be prepared for whatever life throws your way!

This is my MUST have supplement. I love that it is a combination of everything I need to boost my immune system. It seems pricey until you factor in all the vitamins/herbs it contains and it really is cost effective.

I love it that this product has so many great ingredients together.

Beware this product has too much zinc!

Pick Number 5

Naturebell Quercetin Ultra Strength Quercetin Supplement

Why We Like It?
+8,800 ratings
4.7 out of 5.0 stars
2% 1& 2 stars
Naturebell Quercetin Ultra Strength capsules are super concentrated, with 500mg per capsule and 1000mg per serving. Plus, this quercetin is in its most bioavailable form, quercetin dihydrate, so you're getting the most bang for your buck.

With 240 capsules per bottle, Naturebell Quercetin Ultra Strength is an excellent value. And because it's soy-free and sourced from authentic sophora japonica, you can be sure you're getting a high-quality product.

Made with pure quercetin dihydrate powder, Naturebell Quercetin Ultra Strength supplement offers immunity support to help you feel your best. These capsules are also free of gluten, wheat, soy, dairy, eggs, fish/shellfish, and tree nuts – perfect for those with sensitivities. Plus, they are produced in California and undergo 3rd party lab tests to ensure overall safety and potency.

Great for allergies!

It’s just my opinion and I’m not a doctor. But I immediately had less inflammation in my joints. I take it everyday.

Very pleased with this product.

I love it!

Summing Up

If you're looking for a supplement that will improve your athletic performance and support your immune system, look no further than quercetin. This powerful flavonoid can be found in a variety of fruits and vegetables, and it's easily accessible in capsule or powder form.  In this article we here have presented you with 5 excellent options . All of these supplements are made with pure quercetin, in its most bioavailable form, and are free of gluten, wheat, soy, dairy, eggs, fish/shellfish, and tree nuts. Plus, they all undergo 3rd party lab testing to ensure safety and potency. So you can be sure you're getting a product that will help you feel your best.

No matter which of these quercetin supplements you choose, you can be confident that you're getting a top-quality product that will support your health and well-being.

Some FAQs About the Best Quercetin to Take

We have compiled some answers  to the most frequently asked questions about quercetin to help you buy the best product:

What is the best type of quercetin to take?

When it comes to quercetin supplements, there are a few different forms that are available. The most common form is quercetin dihydrate, which is the dehydrated form of quercetin. This form is generally less expensive and easier to find than other forms.

Another form of quercetin that is available is called quercetin rutinoside. This form is made from rutin, which is a naturally occurring flavonoid found in many plants. Rutinoside has been shown to be more bioavailable than quercetin dihydrate, so it may be a better option for some people.

Finally, there is a form of quercetin called quercetin anhydrous. This form is the purest form of quercetin and is typically more expensive than other forms.

What is the best way to take quercetin?

When it comes to taking quercetin, there are a few different options. The most common way to take quercetin is in capsule form. This is a convenient way to take quercetin, and it's easy to find quercetin capsules at most health food stores.

Another option is to take quercetin in powder form. This is a great option for those who want to be able to customize their dosage.

Who should not take quercetin?

Quercetin is a natural compound found in some fruits and vegetables that has anti-inflammatory and antioxidant properties. It is generally considered safe and well-tolerated, but there are a few groups of people who should avoid it.

People with kidney disease or liver disease should not take quercetin because it can increase the levels of certain medications in the blood. Quercetin can also interfere with the absorption of iron, so people with anemia should avoid it. Pregnant women and breastfeeding mothers should also avoid quercetin because there is not enough information about its safety in these groups.

How many mg of quercetin should I take a day?

There is no set answer, as the amount of quercetin that a person needs may vary depending on their individual health condition. However, as a general guideline, it is recommended that people consume 500-1,000 milligrams of quercetin per day.

Some good sources of quercetin include cruciferous vegetables like broccoli and cauliflower, onions and garlic, berries, and green tea. So if you're looking to increase your intake of this powerful antioxidant, try incorporating some of these foods into your daily diet.

How long can you safely take quercetin?

Most experts agree that doses up to 500 mg per day are generally safe. In fact, many people find that quercetin helps them feel better and improves their health in a number of ways, so it's often recommended to take quercetin supplements on a regular basis.

Can quercetin affect sleep?

Yes, quercetin affects sleep. It has been shown to improve sleep quality and promote deeper sleep. Additionally, quercetin has been found to increase levels of melatonin, which is a hormone that helps regulate the body's sleep-wake cycle.

One study showed that quercetin improved sleep quality in people with chronic insomnia. The study participants were given 500 mg of quercetin twice a day for eight weeks. At the end of the study, they reported improved quality of sleep and decreased levels of anxiety and depression.
Source:  https://www.healthline.com/nutrition/quercetin

Can quercetin be taken with other vitamins?

Yes, quercetin can be taken with other vitamins. In fact, it's often recommended to take quercetin with vitamin C since they work synergistically to boost each other's effects. Additionally, quercetin can be taken with other antioxidants like green tea or resveratrol.  All the 5 options presented here combine quercetin with other vitamins and some with zinc.

Are turmeric and quercetin the same thing?

No, turmeric and quercetin are not the same things. Turmeric is a spice that contains curcumin, which is a compound with powerful anti-inflammatory and antioxidant properties. Quercetin is also an antioxidant, but it's found in fruits and vegetables rather than spices. While they both have health benefits, they are not identical.

Can quercetin be taken with medication?

Yes, quercetin can be taken with medication. However, it's important to speak with a healthcare professional before starting any supplement, as quercetin can interact with certain medications. For example, quercetin can increase the levels of some medications in the blood, so people taking medications for kidney or liver disease should avoid it. Additionally, quercetin can interfere with the absorption of iron, so people with anemia should also avoid it. Pregnant women and breastfeeding mothers should also speak with a healthcare professional before taking quercetin.

As always, be sure to speak with a healthcare professional before starting any supplement. They can help you determine the right dosage and make sure that quercetin is safe for you to take.

What are some side effects of quercetin?

The most common side effect of quercetin is gastrointestinal upset, including nausea, bloating, and diarrhea. However, this is usually only a problem when quercetin is taken in high doses. Some people may also experience hives or skin rash. If you experience any of these side effects, stop taking quercetin and speak with a healthcare professional.

Can quercetin help with inflammation?

Yes, quercetin has been shown to help with inflammation. One study showed that quercetin supplements were able to reduce the symptoms of exercise-induced muscle damage. Additionally, quercetin has been shown to improve the symptoms of arthritis and other inflammatory conditions.
Source:  https://www.healthline.com/nutrition/quercetin

Can quercetin help with allergies?

Yes, quercetin has been shown to help with allergies. One study showed that quercetin was able to reduce the symptoms of hay fever. Additionally, quercetin has been found to be effective in treating other types of allergies, such as pet allergies and food allergies.
Source:  https://www.healthline.com/nutrition/quercetin

Does quercetin can affect blood pressure?

Quercetin seems to work by inhibiting the activity of the angiotensin-converting enzyme (ACE), which plays a role in narrowing blood vessels and raising blood pressure. By blocking ACE, quercetin may help to keep blood vessels open and prevent hypertension.

How does quercetin can help with Covid?

Quercetin is a flavonoid found in fruits, vegetables, and herbs. It has anti-inflammatory and antioxidant properties that may help protect cells from damage. Preliminary research suggests that quercetin may help improve symptoms in people with Covid-19. More research is needed to confirm these findings.

People with Covid-19 may want to consider adding foods high in quercetin to their diets, such as blueberries, apples, onions, and kale. Quercetin supplements are also available; however, more research is needed to determine whether they are safe and effective. Always speak with a healthcare provider before taking any supplements.