2265 North Clybourn Avenue    Chicago, IL 60614    P: 773.296.6700     F: 773.296.1131

Quercetin

What Is It?

Quercetin may be a major reason why eating an apple a day has been associated with good health. Quercetin, primarily found in apples and onions, is a type of flavonoid (plant pigment) and serves as a building block for other members of the flavonoid family.

Health Benefits

Quercetin may be beneficial in combating a host of disorders from asthma to cancer. Among people with high dietary intakes of quercetin and other flavonoids, study results show lower rates of stomach, lung, pancreatic, and breast cancers. In one study, lung cancer risk was reduced 58% among people who ate the most apples compared to people who ate fewer apples. In the lens of the eye, quercetin inhibits the build up of sorbitol (a type of sugar) which could otherwise lead to cataract formation. Additionally, quercetin may be useful in relieving hay fever, sinusitis, and asthma because it can reduce inflammation in the airways and lungs and block allergic reactions to pollen.

Ailments-Dosage

Asthma 250-500 mg 3 times a day
Crohn’s Disease 400 mg 3 times a day
Gout 500 mg twice a day
Heartburn 500 mg 3 times a day quercetin or mixed bioflavonoids (with or without added bromelain)

Doctor Recommendations

Quercetin is one of the flavonoids–naturally ocurring plant pigments with a wide variety of positive effects in the body. Flavonoids can act as antioxidants, protecting us from free-radical damage. They also help prevent the accumulation of LDL (“bad”) cholesterol along our arteries and, as natural antihistamines, may minimize allergic reactions.

HOW IT HELPS ASTHMA

Quercetin is thought to benefit asthma in two basic ways. First, it inhibits the release of histamine, the chemical that your body naturally produces in response to allergens, which can lead to watery eyes, nasal congestion, and other discomforts. Second, quercetin appears to inhibit your body’s output of inflammation-producing compounds (prostaglandins and leukotrienes) that are known to tighten your airway tubes, making it hard for you to breathe freely.

WHAT TO LOOK FOR

Many common foods–apples, onions, various berries, and nuts–are rich in quercetin. Even popular herbs such as ginkgo biloba and St. John’s wort contain quercetin. There are now concentrated formulations of quercetin available in supplement form, too.

Combination Products

The medical situations requiring quercetin virtually always require some extra vitamin C. For this reason supplements often combine these two nutrients. This is doubly useful because vitamin C and quercetin appear to enhance and protect each other. The enzyme bromelain, extracted from pineapple, enhances the absorption of quercetin as well. So you’ll frequently see a combination of quercetin and bromelain, or of quercetin, bromelain, and vitamin C.

Standardization

Make sure your combination product contains adequate amounts of quercetin–250 mg in each capsule, for example.

OTHER SUGGESTIONS

No toxic reactions have been reported with the use of quercetin.


Join our Newsletter

Get health recommendations, delicious and time-saving recipes, medical news, supplement reviews, birthday discounts, and more!

BIRTHDAY

Health Tips

Dr. Edelberg’s Health Tips contain concise bits of advice, medical news, nutritional supplement and pharmaceutical updates, and stress relief ideas. With every Health Tip, you’ll also receive an easy, delicious, and healthful recipe.

When you sign up to receive Health Tips, you can look forward to Dr. Edelberg’s smart and very current observations arriving in your in-box weekly. They’re packed with helpful information and are often slightly irreverent. One of the most common responses to the tips is “I wish my doctor talked to me like this!”

Quick Connect

Get One Click Access to our

patient-portal

The Knowledge Base

Patient education is an integral part of our practice. Here you will find a comprehensive collection of staff articles, descriptions of therapies and nutritional supplements, information addressing your health concerns, and the latest research on nutritional supplements and alternative therapies.

Join our Newsletter

Get health recommendations, recipes, medical news, supplement reviews, birthday discounts, and more!

Upcoming Workshops

**Pain Relief with Myofascial Balls
Tuesday, October 29, 6-8pm
With Renee Zambo, C-IAYT Yoga Therapist

Course Fee: $65.00
(includes WholeHealth Chicago Myofascial Release Kit, $40 value)

Does that same spot in your neck, shoulders, back or hips seem to bother you every day? Do you have joint aches and pains in the hands and feet? Would you like to learn ways to alleviate that pain and tension?

Join WholeHealth Chicago’s Yoga and Movement Therapist Renee Zambo for an evening of muscle tension release with myofascial therapy balls.

Space is limited and registration is required.
Please register online.
Call the Center for additional information at (773) 296-6700
More>>

Recent Health Tips

  • Dandruff, Fungi, and Cancer of the Pancreas

    It’s an eye-catching title, I’ll admit. But the links are quite real and further research may guide medicine in new directions of cancer prevention and treatment. It all starts in your gut microbiome, the totality of microorganisms–bacteria, viruses, protozoa, and fungi–present in your gastrointestinal (GI) tract, mouth to anus. Until recently, researchers and clinical physicians alike paid virtually no attention to the microbiome and the Read More

  • New Hope For Sinus Sufferers

    When osteopath Dr. Rob Ivker moved to Colorado in the 1980s to set up his family practice, he had no idea that when he stepped off the plane he’d succumb to symptoms of chronic sinusitis that just wouldn’t go away: stuffy nose, thick mucus, pressure behind his cheekbones and above his eyebrows, dull aching headache, and thick goopy drainage in the back of his throat. Read More

  • Director of IV Therapies Katie McManigal, BSN, ANP

    Most people at some point in their lives have had an intravenous (IV) line. An adept nurse warned you about the tiny pinch of the needle as it was smoothly inserted and taped in place.  Then the  fluid dangling above your head slowly started making its way through a tube and into your body. IVs are all over the place in hospitals. They’re seen in Read More

October Sale – Save 20% off UltraMeal Rice

UltraMeal RICE is a tasty, non-dairy, nutritionally fortified, powdered meal replacement for those who want to support healthy body composition but may be sensitive to soy.

Click here to take advantage of this month’s promotion!