Quercetin (Quercitin) Bioflavonoids - Allergy, Side-Effects, Canc Support

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Quercetin (Quercitin) Bioflavonoids
Allergy/Asthma Support, Side Effects, Canc Support - Page 1


Quercetin is a bioflavonoid that supports cellular health and function.  In human cell culture studies, it has been shown to block the manufacture and release of inflammation-causing substances which can help support a healthy immune response to seasonally changing allergy environment.  It also helps promote a healthy cardiovascular system by preserving endothelial integrity and supports healthy blood glucose levels for those already within normal range.  Quercetin is a proprietary formulation that sets the gold standard for high-quality pharmaceutical-grade quercitin derived from a food-source blend.

News of the disease-protective and longevity benefits of red wine has grabbed headlines around the world during the past few years.  Red wine contains a number of beneficial polyphenols, such as the much-publicized resveratrol as well as quercetin1 -- a compound that is now also making news of its own.  Long known for its anti-inflammatory and anti-allergy effects,2,3 recent scientific breakthroughs reveal that quercetin may help promote longevity by mimicking the effects of caloric restriction.4,5  Furthermore, this powerful antioxidant demonstrates multifaceted protective effects against cardio-vascular disease, metabolic syndrome, and canc.2,3

While quercetin can be obtained through red wine and other dietary sources such as apples, onions, grapefruit, tea, green vegetables, and beans6, highly purified supplements make it possible to acquire the biologically meaningful doses that have shown promise in tightly controlled studies.  In the words of the German nutrition expert Professor Stephan C. Bischoff, Quercetin is a most promising compound for disease prevention and therapy.7  Lets take a look at some of the compelling evidence that has accumulated over the past few years for quercetins role in health management and disease prevention.

Anti-Inflammatory and Anti-Allergy Effects
At the core of most of quercetin's remarkable properties is its ability to modulate inflammation.  Since we now understand that inflammation is involved in virtually every chronic human disease and many acute ones -- having an inflammatory modulator like quercetin in our armamentarium is likely to prove very useful indeed.
Quercetin in Red Wine

Supplement Facts for Life Extension (vegetarian) -- 60 Vege Caps, 250 mg each. Serving size - 1 vegetarian capsule. Number of servings - 60.

Amount / Serving

Vitamin C (from Camu Camu berry extract)

30 mg

Optimized Quercetin Food Blend (500 mg) Quercetin dihydrate, buckwheat (Fagopyrum esculentum) (sprout), apple (Pyrus malus) polyphenol extract (fruit), onion (Allium cepa L.) extract (bulb) (providing polyphenols, quercetin glycoside derivatives and free quercetin)]. Camu Camu (Myrciaria dubia) extract (wildcrafted berry) 150 mg.

Supplying 250 mg quercetin

Other ingredients:  Vegetable cellulose (vege capsule), silica, vegetable stearate, microcrystalline cellulose, maltodextrin. Contains corn. This product contains NO milk, egg, fish, peanuts, crustacean shellfish (lobster, crab, shrimp), soybeans, tree nuts, wheat, yeast, gluten, or rice. Contains NO sugar, and no artificial sweeteners, flavors, colors, or preservatives.

Dose and Use: Take one capsule once or twice daily with or without food, or as recommended by a healthcare practitioner.

Supplement Facts for Source Naturals Tablets:  Serving Size - 3 Vegetarian Tablets.

Amount / Serving

Vitamin C (as magnesium ascorbate)

646 mg

Magnesium (as magnesium ascorbate)

50 mg


1 gm

Bromelain (2,000 G.D.U. per gram) 300 mg
Other Ingredients:  Sorbitol, stearic acid, modified cellulose gum, colloidal silicon dioxide, and magnesium stearate.

Dose and Use:  Take one tablets once or twice daily with or without food, or as recommended by a healthcare practitioner.

Supplement Facts for Source Naturals Nutra Drops Liquid Serving Size - 2 Droppers Full

Amount / Serving

Quercetin - Vegetarian friendly

134 mg

Other Ingredients:  Purified water, fructose, glycerin, lactic acid, natural orange flavor, xanthan gum, lauric arginante, lecithin, stevia extract, and potassium benzoate.

Dose and Use:  1-2 droppers as desired.  Place liquid under the tongue, allow to remain for 30 seconds, and swish before swallowing.

Warnings Information:

  • For dietary supplement use only,
  • Keep Quercetin (Quercitin) Bioflavonoids supplements out of reach of children,
  • Do not exceed recommended dosage,
  • If you have a bad reaction or side effects, discontinue use immediately,
  • When using, please inform your physician,
  • If you are pregnant, lactating or have a medical condition, consult your health care professional before using this or any other nutritional supplement,
  • If side effects or an allergy reaction occurs from taking Quercetin (Quercitin) Bioflavonoids, discontinue immediately.

Page 2 | Page 3 | References

Pricing Information: Quercetin (Quercitin) Bioflavonoids


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