Quercetin: tinnitus, anxiety, allergies, prevent scarring, lower BP, fight infections and more

Quercetin on Amazon.com

Quercetin on iHerb.com (first-time customers get $5-10 off of their order)


I am taking a supplement of quercetin. Good stuff!
Anybody else?

Quercetin Facts

Quercetin’s antihistamine properties may help you avoid a scar. You can find quercetin in many over-the-counter herbal products for scar treatment (e.g., Mederma®)—it’s in the onion extract ingredient.

Want to improve the absorption of quercetin? Take it with bromelain—a helpful enzyme that nutritionists suggest can do just that. You can even find supplements with quercetin and bromelain combined, such as Activated Quercetin™ from Source Naturals.85-86
As a flavonoid, quercetin is a one of the pigment molecules responsible for the bright colors in fruits and vegetables.

Studies suggest that quercetin’s anti-inflammatory and antihistamine properties could reduce asthma attacks triggered by allergies just like it helps relive nasal allergies.85
Tired of seasonal allergy symptoms? In one study, quercetin reduced histamine release in people with seasonal allergies by 96%. Take 500 mg/day of quercetin with 100 mg of bromelain and 500 mg of vitamin C for the best effect, or you can try Freeda®’s Anti-Allergy formula.

Got keloids? You might want to get some quercetin then. Studies show that it blocks insulin-like growth factor (IGF), a protein known to promote the excess collagen produced in keloids.

Quercetin-containing kudzu may be an invasive weed in Georgia, but it’s a medicinal herb in both China and Japan. Thought to reduce alcohol cravings, relieve headache and tinnitus, and lower blood pressure, you can find it in extract and supplement form at online and retail locations.

Antioxidant medicinal herbs used for supplements that contain quercetin include milk thistle, olive leaf, bilberry, elder, and green tea.

Reduce menopausal symptoms naturally with herbs that contain quercetin, such as licorice, primrose, Tribulus terrestris, and motherwort.

New studies suggest that quercetin can improve your mood. This might come as no surprise, since like many antidepressant and anti-anxiety drugs, quercetin is an MAO inhibitor.

Many popular herbs known to be effective for anxiety, depression, insomnia, and stress contain quercetin, such as St. John’s wort, hops, valerian, passionflower, chamomile, and gingko.

Herbs with antibacterial, antifungal, antiviral, and immune-boosting properties that can help you fight infections from these microbes often contain quercetin. Some of the more popular ones are: barberry, bilberry, cayenne, cranberry, echinacea, eucalyptus, garlic, licorice, olive leaf, and parsley.
www.quercetin.com

 

As a flavonoid with potent antioxidant powers, eating quercetin-rich foods can help reduce the effects of free radical damage on cells from UV exposure. Immediate relief from the redness and inflammation associated with sunburn has also been shown with topical application of quercetin-containing leaf extracts from Culcitium reflexum plants.7

Animal studies have determined that administration of quercetin prior to UV exposure, whether by injection or topical cream, protects against UVA and UVB free radical damage, as measured by markers for oxidative stress. UVA is known to stimulate production of enzymes associated with the breakdown of collagen, and lab studies show that quercetin blocks this enzyme’s activities.7
So in addition to practicing safe sunscreen habits, load up on some healthy foods that contain plenty of quercetin. Some good choices are:

• Almonds. Not only are they a good source of quercetin, but they contain a large amount of vitamin E too, another antioxidant nutrient that studies have shown protect against UV skin damage. Almonds are also good sources of magnesium, calcium, iron, fiber and protein, making them a sound choice for overall health as well.7,27
• Apples. Eat them uncooked with the skin for the most benefit, since most of the antioxidants and vitamins (e.g., vitamin C) are in the peel. The skin is also a good source of beta-carotene, which is linked to good skin health. Why not try some chopped apple in a salad with a small handful of almonds? Combining vitamins C and E actually provides more UV skin protection than by themselves, and with the extra antioxidant kick from quercetin you’ll be really doing your skin a favor.7,27 Nutritionists recommend the Granny Smith and Braeburn types of apples for maximum amounts of quercetin, and to store in the refrigerator no more than 100 days (after that quercetin content diminishes).29
• Apricots. Fresh or dried, this bright orange fruit has lots of quercetin, vitamins A and C, fiber, and both beta and gamma carotenes. Clinical trials have shown that beta-carotene, the carotenoid that produces the vibrant orange color in apricots and other fruits and vegetables, has an overall skin-protective effect.7,27
• Capers. These tangy bite-sized buds are loaded with quercetin—a whopping 1800 mg/kg!26 Garnish any Mediterranean-style poultry or seafood dish for a delightful and skin-healthy citrus flavor that pairs well with lemon and garlic.
• Onions. An abundant source of dietary quercetin, onions are also high in vitamin C and chromium. Studies have shown that all of these nutrients promote healthy skin and hair.29 For the highest amount of quercetin be sure to use the outermost rings of the onion.26
• Tomatoes. These juicy, lycopene-rich red fruits are also high in quercetin.7,26 Combining both nutrients is sure to maximize UV protection, especially since clinical trials have demonstrated the antioxidant effectiveness of both.7 Not only are tomatoes a natural sunscreen, they are also potent at fighting wrinkles.29 Nutritionists recommend eating them cooked to get the benefits of both antioxidants; and be sure to look for organic tomatoes since they have almost 80% more quercetin than conventionally grown ones.26,29

 

But for those already experiencing some level of cardiovascular disease with high blood pressure and cholesterol levels, studies show quercetin can significantly reduce these two markers, demonstrating its therapeutic uses.32
Researchers suggest that quercetin’s preventive mechanisms for cardiovascular disease in healthy people simply may be measurable in ways other than blood pressure or cholesterol levels. http://www.quercetin.com/cardiovascular/is-quercetin-a-cure-for-a-broken-heart

 

Potential Drug Interactions
Given quercetin’s potent effects, it may enhance or interfere with certain prescribed medications and treatments, such as:

• Blood thinners.17
• Chemotherapy agents doxorubicin and cisplatin.17
• Corticosteroids.17
• Liver-Metabolized Drugs—may increase the effects and side effects of cyclosporine and other drugs processed in the liver by slowing down the metabolic process.17-19
• Quinolone antibiotics—may reduce the efficacy of these types of antibiotics, also known as fluoroquinolones.4,10

By inhibiting actions of the protein in cell membranes responsible for transporting a number of different drugs (e.g., Cardizem®, Zantac™, Allegra®, and Lanoxin™), quercetin may increase the absorption and the risk of side effects.19

 

Bioflavonoids

Bioflavonoids are naturally occurring compounds found in the pulp and rind of citrus fruits and other plants. They come in the form or citrus flavanoids, rutin, anthocyanidins, quercetin, naringenin and others. According to the Institute of Traditional Medicine, they have antioxidant, anti-inflammatory, antiallergenic and anti-viral properties and have recently been used in studies to relieve ringing in the ears. They generally have the property of enhancing blood circulation, which commonly affects people experiencing inner ear issues and those with Meniere's disease. Bioflavonoids are usually taken with Vitamin C.

Read more: http://www.livestrong.com/article/357237-vitamins-minerals-for-ringing-ears/#ixzz2P8GDqYXZ​

 

Traditional Medicine Herbs with Quercetin
Many medicinal herbs used in traditional medicines such as Ayurveda, Kampo, Unani, Traditional Chinese Medicine(TCM), and Native American contain quercetin, and some of these have been tested in the lab and in clinical studies for their effectiveness:

[Go to the link for the traditional uses. I am only going to display the modern uses]

Ayurveda

• In the lab: Antiviral.77
• Animal studies: Anti-inflammatory, adaptogenic properties, immune-boosting, antitumor.77
• Clinical human studies: Significantly reduced cholesterol levels.77

• In the lab: Antiviral and antifungal.77
• Animal studies: Antiviral, immune-boosting, lowers blood pressure, anti-inflammatory, antitumor, reduces anxiety, increases fertility.77
• Clinical human studies: Significantly reduced symptoms of ulcers, lowered bad(LDL) cholesterol and increased good(HDL) cholesterol levels, cavity and plaque-reducing, 97% cure rate for scabies, diluted with oil as an effective insecticide against mosquitos.77

Unani Tibb

• In the lab: Antimicrobial, antioxidant, antifungal, and antiviral, antitumor.79-80
• Animal studies: Anti-inflammatory for ear infections and asthma, reduced diarrhea.79-80
• Clinical human studies: Cured amoebic dysentery in 83-92.5% of patients in two studies.80

• In the lab: Antioxidant, antimicrobial and antiviral against HIV , protection against UV radiation , anti-inflammatory, antitumor activity against breast and liver cancer cell lines.81
• Animal studies: Anti-inflammatory, helps with cartilage damage, antihistamine, reduces cholesterol levels.81
• Clinical human studies: Antioxidant, anti-inflammatory, and immune boosting effects in patients with cirrhosis of the liver; inhibit fibrotic activity in systemic sclerosis; antiviral and immune-stimulating effects specific to herpes.81

Kampo and TCM

• In the lab: antioxidant, antitumor, anti-inflammatory.82
• Animal studies: Anti-inflammatory effects protective of the liver, lungs, and blood vessels.82

Native American Medicine

• In the lab: Antioxidant and anti-inflammatory effects against factors linked to heart disease ; antibacterial protection from urinary tract infections; and antitumor activity against hormone-sensitive prostate cancer cells.27
• Animal studies: Improves symptoms of Alzheimer’s disease, including memory loss and coordination problems; protects against brain damage caused by stroke.27
• Clinical human studies: Slows down vision loss.83

http://www.quercetin.com/natural-medicine/traditional-medicine-herbs-with-quercetin

 

Food Chart
This is a food chart showing fruits, vegetables, nuts and grains rich in quercetin.

http://www.quercetin.com/overview/food-chart

 

good findings calin,let me try it

 

I do my best myself!

 

wich one are you taking?how much is the daily dosage recommended?

 

Here is a good site for information and dosage: http://www.superfoods-scientific-research.com/natural-remedies/quercetin-dosage.html

Another site for recommended dosages based on body conditions: http://www.livestrong.com/article/409737-the-dosage-of-quercetin-per-day/

I take 2 - 500 mg per day (Solaray brand). My next bottle might be the Swansons brand with 650 mg. https://www.swansonvitamins.com/swanson-premium-high-potency-quercetin-650-mg-60-caps

 

Hi Calin
Has the Quercetin helped you ? I bought today , it's has Bromelain too, as eating pineapples was helping me with the T , I thought this may help more. So today I took two pills and am not taking any other to see if there's any change.i bought organika brand and 500 mg. thank you so much for posting so much info. Looking forward to hearing from you.

 

Hi Sherri!

Give it a bit of time. Lets see how it goes!

Good luck!!!

 

Sorry Calin, saw your post today ! Thank you so much.