From our list of ailments, see what Quercetin can be used for:

  • Allergies
  • Anal Fissures
  • Arteriosclerosis
  • Arthritis
  • Asthma
  • Atherosclerosis
  • Blood Cleansers
  • Blood Clots
  • Blood Pressure
  • Bronchitis
  • Bruises
  • Cancer
  • Canker Sores
  • Chest Congestion
  • Cholesterol
  • Cholesterol High
  • Circulation Poor
  • Cold Sores
  • Colds and Flu
  • Coughs
  • Diabetes
  • Eczema
  • Emphysema
  • Eye Issues
  • Fatigue
  • Flu Virus
  • Gout
  • Hardening of the Arteries
  • Hay Fever
  • Heart
  • Heart Disease
  • Hemorrhoids
  • Herpes
  • High Blood Pressure
  • Hives
  • Hypertension
  • Immunity
  • Infections
  • Inflammation
  • Influenza
  • Joint Pain
  • Lungs
  • Piles
  • Postnasal Drip
  • Prostate
  • Respiratory Problems
  • Sinus
  • Sore Throat
  • Tuberculosis
  • Ulcers
  • Varicose Veins
  • Viral Conditions Infections
  • Warts

Natural Remedies using Quercetin

Many physicians have found quercetin supplements, 300 to 500 mg daily, helpful in treating pollen allergies, but there is a catch. Quercetin supplements have failed to pass the Ames test for mutagenicity, which means they cause breaks in genetic material and conceivably could increase the risk of cancer. In practical terms this risk may be remote because fruits and vegetables supply many nutrients that enhance the body’s repair mechanisms. But still, there is something troubling about taking a potential carcinogen to treat inflammation or allergies. Only one form of quercetin has passed the Ames test. That is quercetin chalcone, made by Thorne Research (208-263-1337).

Extracts (Du Zhong) — Quercetin (at 8.5 µ M) was most potent of 5-alpha-glucosidase inhibitors found in extracts of the leaves (X9028049). Leaves contain several anticlastogenic (antimutagenic) compounds (asperulosidic acid, deacetyl asperulosidic acid, asperuloside, geniposidic acid, geniposide, p-trans-coumaric acid pyrogallol, and protocatechuic acid) (X9025787). At 100 µg/ml, the leaf extract was more potent a radical scavenger than isolated protocatechuic acid at the same concentration, clearly a super example of synergy (X10956129). With at least six compounds that tend to stimulate collagen production, this herb certainly has antiaging potential (including antiwrinkle activity). Scientists favor one part ginseng:four parts du zhong for synergistically stimulating collagen production (X9084879).

Allergies, Anal Fissures, Arteriosclerosis, Arthritis, Asthma, Atherosclerosis, Blood Cleansers, Blood Clots, Blood Pressure, Bronchitis, Bruises, Cancer, Canker Sores, Chest Congestion, Cholesterol, Cholesterol High, Circulation Poor, Cold Sores, Colds and Flu, Coughs, Diabetes, Eczema, Emphysema, Eye Issues, Fatigue, Flu Virus, Gout, Hardening of the Arteries, Hay Fever, Heart, Heart Disease, Hemorrhoids, Herpes, High Blood Pressure, Hives, Hypertension, Immunity, Infections, Inflammation, Influenza, Joint Pain, Lungs, Piles, Postnasal Drip, Prostate, Respiratory Problems, Sinus, Sore Throat, Tuberculosis, Ulcers, Varicose Veins, Viral Conditions Infections, Warts

The Benefit of using Quercetin as a natural cure

Contraindications, Interactions, and Side Effects (Hydrangea) — Class 2d. Not for prolonged use. Do not exceed recommended dose. Cyanogenic properties (AHP). ‘Hazards and/or side effects not known for proper therapeutic dosages” (PH2) (but PH2 designates no specific quantified dosage! JAD). CAN cautions regarding GI irritation and dermatosis. Overdoses may cause tightness in chest and vertigo. Hydrangin may cause gastrosis and enterosis. And the cop-out clause. In view of the ‘lack of” data, use during pregnancy and lactation, and excessive use should be avoided (CAN). Extract is nontoxic in animals (PNC). Hydrangenol is allergenic (PHR; PH2). Flavonoids such as quercetin and rutin (widespread in other herbs) are said to be diuretic, to inhibit tumor formation, and to reduce inflammation. Synthesized hydrangeol derivatives are reportedly antiallergic, inhibiting hyaluronidase activity and histamine release (CAN).

Extracts (Red Bush Tea) — Flavonoids isolated from rooibos include aspalathin, (+)-catechin, chrysoeriol, iso-orientin, isoquercitrin, isovitexin, luteolin, nothofagin, orientin, quercetin, rutin, and vitexin. Phenolic acids include caffeic acid, p-coumaric acid, p-hydroxybenzoic acid, ferulic acid, protocatechuic acid, syringic acid, and vanillic acid. Most of these compounds, widely distributed in nature, are antioxidants, but aspalathin, present at 15,000 ppm, is unique to Aspalathus.

might be of benefit, along with quercetin (which inhibits some types of inflammation-promoting adhesion molecules) and the herb boswellia. A study published in the Journal of Medicinal Food reported that the herbal antioxidant Pycnogenol (1 mg per pound of body weight, up to 200 mg daily) improved lung function in patients with asthma. It is also important to maintain a normal weight, because overweight increases the risk of asthma. (See ‘Overweight and Obesity” in this chapter.) Athletic and Other Injuries

Extracts (Feverfew) — Inhibit leukotriene, prostaglandin, and thromboxane production; inhibit phospholipase A2 (facilitating the release of arachidonic acid from the phospholipid cellular membrane; clinical relevance questionable) (CAN). Extracts inhibit interaction of platelets with collagen substrates. Inhibits granule secretion in blood platelets and neutrophils (associated with etiology of migraine and rheumatoid arthrosis, respectively). SLs with an alpha-methylene butyrolactone unit may explain antisecretory activity (CAN). Extracts produce a dose-dependent inhibition of anti-IgE-induced histamine release from mast cells (differently than cromoglycate and quercetin) (CAN). Contains several COX-2 inhibitors, but one of best sources of parthenolide (COX).