Quercetin is a polyphenol commonly found in plant products. It is widely used in health supplement due to its anti-oxidative, anti-inflammatory, anti-carcinogenic, and anti-viral properties.
Polyphenols are a group of phytochemicals found in various fruits and vegetables. They are compounds that have antioxidant properties and are known to prevent oxidative stress in cells. One such potent and beneficial polyphenol is quercetin.
Several studies over the years have claimed that it has anti-diabetic, anticarcinogenic, and antimicrobial properties. It may also be helpful in weight loss. In one study, obese mice fed quercetin lost weight and, by the end of the experiment, their metabolic parameters had also improved.
Which Foods Are Great Sources Of Quercetin?
Leafy green vegetables, such as kale and lettuce, grapes, green tea, apples, berries, broccoli, cocoa powder, and red wind are some of the foods that must be included in diet to help our body with quercetin supply.
It is also found in cherries, red leaf lettuce and asparagus. However, these are not the only sources of quercetin. It is also known to be present in medicinal plants such as Gingko, American elderberry, and Hypericum species.
Humans cannot make the compound in their bodies, therefore, it is necessary that we include its various sources in our diet.
Benefits:
May protect brain health: Studies over the years have found quercetin effective in delaying neurodegeneration process. It has the ability to cross the blood-brain barrier (BBB) which makes it helpful is such cases. It has shown to improve learning and memory.
Anti-diabetic: A study conducted on rats found quercetin effective in reducing the damage caused by diabetes. It even lowered the blood pressure in hypersensitive rats. In some cases, quercetin prevented embryonic malformations in pregnant diabetic mice. Several studies on humans have found similar impact of quercetin in improving insulin regulation.
Supports Immune Function: The antioxidant properties of quercetin have made it a go to supplement for people looking for prevention and treatment of cancer and cardiovascular diseases. Quercetin kills free radicals and acts against inflammation
Anti-cancer properties: It has shown inhibitory effects on tumor formation. Some studies have shown that a diet rich in compounds like quercetin can lower the risk of certain cancers. However, more research is needed to understand its impact on cancer cells.
Reduces the risk of heart disease: Its anti-inflammatory effects help prevent heart disease. Studies conducted in animals and humans both have confirmed how it can help reduce the risk of atherosclerosis, a condition associated with the buildup of fats and cholesterol in arteries. Antioxidants present in quercetin are also known to prevent an increase in LDL "bad" cholesterol.
Fights viruses and bacteria: According to a study published in the National Center for Biotechnology Information (NCBI), quercetin can inhibit the growth of bacteria such as Salmonella enteritidis, Aspergillus flavus, Escherichia coli, and Staphylococcus aureus.
Is It Safe To Consume?
According to the U.S. Food and Drug Administration (FDA), quercetin is generally safe if taken in amounts up to 500 mg per serving. However, people with kidney diseases must avoid taking quercetin. Pregnant and lactating women should also consult their healthcare providers before including quercetin supplements in their diet.
It may affect how you digest and process certain medications. You must consult your physician before taking he supplement with other medications. It also needs to be noted that quercetin supplements offer several benefits and are generally safe to incorporate into your health regime. Here are some of the top quercetin supplements currently available on the market.
1. GREENDORSE Quercetin Supplement
This powerful blend of some of the finest ingredients ensures that you get the health benefits of several elements through one supplement. It contains quercetin with bromelain, a compound effective in treating indigestion, swelling, and inflammation. Bromelain helps increase the bioavailability and benefits of quercetin, making this supplement more potent than other quercetin supplements on the market. It is a natural product made without additives, fillers, or preservatives. It is kosher, non-GMP, and third-party tested for quality.
2. Amazing Formulas Quercetina
Formulated with premium-quality quercetin, this supplement promises to support cardiovascular health, blood pressure, and improve the immune system. This must be on your list if you are looking for a quercetin supplement that is nut-free, gluten-free egg-free, vegan, and non-GMO. Amazing Formula provides superior-quality products to support optimal daily health through scientifically researched products. It has thousands of positive ratings on Amazon and features among its bestsellers. Adding quercetin supplement to your balanced diet along with regular exercise may offer a wide array of benefits.
3. NatureBell Quercetin
A natural herbal ingredient that provides important phytonutrients to both men and women. It is authentic non-GMO quercetin powder that contains ingredients free of soy, dairy, gluten, preservatives, wheat, and tree nuts. Manufactured in the USA, the supplement has been tested for purity and quality. This supplement has been sourced from the Sophora japonica plant, known to have an abundance of water-soluble quercetin properties. A must-try supplement if you are looking for a 95 percent formula.
4. Sandhu's Quercetin Vegetarian Capsules
With thousands of positive reviews on Amazon, this product is a much-sought-after quercetin supplement. It is extracted from the flower buds of Sophora japonica trees. A great alternative for those looking for vegetarian options, this supplement is gluten, soy, and dairy-free. You can include it in your diet if you want to give your heart a little extra support.
5. ForestLeaf Quercetin Supplement
An advanced formula packed with the goodness of premium-quality ingredients, this supplement works to boost your immunity and improve your digestive health. In addition to quercetin, it contains bromelain, vitamin C, and nettle leaf. Nettle leaf has been used in India's Ayurvedic medicines as an anti-inflammatory compound. The bromelain present in the supplement helps in better absorption of quercetin. Apart from its many health benefits, this product has been made to ensure it can cater to a maximum number of people. It is non-GMO, dairy, and gluten-free.
6. Horbäach Quercetin Supplement
This quercetin alternative is a great alternative for lactose-intolerant people. This product is gluten-, wheat-, yeast-, and milk-free. It also contains zinc essential to reduce the risk of getting age-related diseases. A balanced diet and regular exercise combined with a quercetin supplement can help you lead a much more active and healthy life.
7.THORNE Quercetin Phytosome Complex:
Thorne makes one of the few supplements that offer respiratory support along with various health benefits. It regulates histamine release and mitigates oxidative stress. The brand has collaborated with Mayo Clinic on wellness research to offer better products. It is also a proud partner of 11 U.S. Olympic Teams.
8. Quercetin Bioactive Phytosome Complex
This is a quercetin supplement that offers twenty times more absorption and is made with beneficial ingredients such as mushrooms and bromelain. Proudly made in the USA, it uses an advanced delivery system with phytosome technology. Containing the nutrition of whole foods, this supplement offers you overall health support. It boosts the immune system, reduces histamines and skin irritations, and supports cardiovascular and cellular health.
9. Designs for Health Quercetin Plus Nettle Supplement
Containing the combination of quercetin and nettle leaf extract, this supplement has powerful antioxidant properties and helps the body regulate histamine. Nettle leaf has a high vitamin C content. It is vegan and free of soy, gluten, and GMOs. Designs for Health is the physician's choice for top-quality supplements. It can be included in your daily routine conveniently.
10. Life Extension Bio-Quercetin
Quercetin promotes a healthy immune response in the face of seasonal immune challenges, which makes it an ideal ingredient to be included in your diet. It helps inhibit oxidative stress, thereby making it ideal for your cardiovascular health. The supplement offered by Life Extension is 50 times more bioavailable than standard quercetin. It is a vegetarian-friendly product that is both gluten- and GMO-free.
11. Spartis Supplements
A highly potent immune complex, this supplement contains a blend of zinc, quercetin, vitamin C and D3. Vitamin C and Bromelain help in better quercetin absorption, while vitamin D supports bones. Made in the USA, the product has been tested for purity, potency and consistency. It does not contain any proprietary hidden ingredient. Make this complex a part of your daily routine for to have better health support.
12. Double Wood Supplements
The supplement can be used by both men and women. It is vegan, non-GMO, and comes in easy-to-consume pineapple flavor. It provides 60 servings of 1,000 mg quercetin and 200 mg bromelain. As a dietary supplement, you can take one capsule twice a day or two capsules once per day. However, you must consult your physician to avoid side effects and allergic reactions.
13. Toniiq Ultra High Purity Quercetin Capsules
These unflavored capsules have been made using ethically sourced quercetin. To ensure the quality of the product, each batch is tested for quality during and after the manufacturing. Toniq products are made in a GMP-certified and NSF-approved state-of-the-art manufacturing facility. Pregnant and lactating women must not include this in their diet.
14. Jarrow Formulas Quercetin
This daily wellness formula for adults provides 100 servings. This immunity health formula is great for cardiovascular health. This unique formula is carefully crafted after much research. Non-GMO and gluten-free, this product is an efficient alternative for those with dietary restrictions. Adults can take one capsule once a day with meals.
15. Carlyle Quercetin 500 mg Capsules
This unique formula has been paired with zinc for better absorption. It comes in capsule form, and customer reviews claim that it is easy to swallow and leaves no aftertaste. These vegetarian capsules are gluten-free and non-GMO, made with no artificial flavor, sweetener, or preservatives. It is only meant for adult men and women. Adults can take one (1) vegetarian capsule daily. However, it needs to be noted that zinc on an empty stomach may cause stomach issues for some people.
16. Smart Nutra Labs Quercetin
This unflavored quercetin supplement is vegan and gluten-free. It contains 100 percent pure quercetin, and each pack comes with a 3-month supply. It is one of the few brands that offers a money-back guarantee if you are not satisfied with the product. So if you are thinking of including quercetin in your diet, this product should be able to make it to your Amazon cart. It supports overall wellness and gives you energy for everyday functioning.
17. SOLARAY Quercetin Supplement
An ideal health support for those on a keto diet, this quercetin supplement helps maintain uric acid levels within a healthy range. Its USP is its eco-friendly packaging. Solaray uses PCR recycled plastic bottles for its packaging. Manufactured in their own facility, this product is vegan and lab verified for potency and purity. The other ingredients in the package are vegetable cellulose capsules, silica, stearic acid, and cellulose.
18. KAPPA NUTRITION Quercetin Supplement
This superior absorption complex is proudly manufactured in the USA. It comes in capsule form, designed for easy swallowing. It is vegan and rigorously tested for purity and safety, providing you with a reliable and effective supplement. This advanced formula supports healthy aging, providing superior absorption and effectiveness. The formula contains minerals in chelated form, significantly enhancing the bioavailability of the ingredients. It has 14 powerful ingredients such as Vitamin C, Zinc, Vitamin D3, Vitamin K2, Acerola, Ginger, Rutin, Bitter Orange, Rose Hips, Copper, and Selenium. This supplement must become a part of your diet if you are looking for several benefits in one supplement.
19. Stamiron's 8 in 1 Immune Support with Quercetin
This supplement does away with the need to include a multitude of supplements in your diet because of its All-In-1 Immune Support unique formula. It is packed with 3 types of zinc (picolinate, glucose, and citrate) as well as 5000 IU of vitamin D, 1000 mg of vitamin C, quercetin, elderberry, echinacea, turmeric, and ginger. With the presence of vitamin C and D3, you get the best antioxidant support. The turmeric and ginger present in the formula increase absorption and bioavailability. While elderberry and echinacea support immunity, cardiovascular heart health, and skin health. It is made without harmful additives, hormones, gluten, and dairy.
20. Natural Factors' Quercetin LipoMicel Matrix
Formulated with LipoMicel technology, this product delivers up to 10x superior absorption than standard quercetin. It contains unique antioxidants to support your blood vessels and immune system. It is a plant-based alternative with no sugar. It is also free of lutein and dairy. The product has been independently tested and third-party certified for GMOs and over 800 contaminants using advanced technology. The unique liquid softgel form ensures the effectiveness of the supplement.
21. Bluebonnet Quercetin Vegetable Capsules
One of the few kosher supplements available in the market, this product is soy-free, gluten-free, non-GMO, dairy-free, and vegan. It is also a great alternative for those with allergies since it is free of milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, and soybeans. It also does not contain yeast, gluten, barley, rice, sodium, or sugar. Its USP is its formula; apart from quercetin, it also contains vitamin C, rose hips, acerola, citrus bioflavonoids, hesperidin, rutin, and pineapple bromelain. Enjoy the many benefits of such potent ingredients by including this product in your diet.
22. Garden of Life Quercetin formula
Made with probiotics and vitamins in addition to quercetin, this unflavored supplement is effective in improving respiratory health, skin health, and immunity. A gluten-free and non-GMO product, it can be included in your diet conveniently. It is derived from the Sophora japonica tree in Brazil. It also provides clinically studied Bacillus subtilis DE111 for optimal immune system support. A carbon-neutral product, this is a great quercetin source for those who are looking for climate-friendly products.
23. Micro Ingredients Quercetin
This product offers a 6-in-1 total immunity complex made to support year-round seasonal support for the whole family. Each pouch provides 240 total capsules with 120 servings. It provides essential trace minerals, daily vitamins, and active nutrients. Made without soy, dairy, gluten, preservatives, flavors, and tree nuts, this supplement has been tested for quality and claims both.
24. Organic Cadane Quercetin Supplements
An organic supplement containing the perfect combination of multi-premium ingredients, this product comes in capsule form. It contains highly concentrated herbal ingredients for enhancing absorption and overall health support. The dietary supplements by Cadane are produced in GMP, ISO-certified manufacturing facilities, so you do not have to worry about quality and authenticity. The potent herbs included in the formula are black pepper, nettle, berberine, and turmeric. All these herbs are used in Indian ayurvedic medicines and are known to have several health benefits.
25. Quercetin Liquid Drops
A perfect solution for those who absolutely despise taking capsules and tablets. This liquid supplement makes it easy for you to include quercetin in your diet. Its pineapple flavor ensures your brain does not think of it as a medicine to be dreaded. It can be consumed by both children and adults. Each bottle of liquid quercetin by "M inch" is organic, non-GMO, vegan, and made in a GMP facility. Best for those with food allergies, this product is also dairy-free, nut-free, gluten- and wheat-free, soy-free, corn-free, and sugar-free. All you have to do is simply add these droplets to water or your favorite food or drink, and you are good to go.
