Quercetin. What Are The Health Benefits?

Quercetin is found in nearly every dark-colored fruit and vegetable, many of which are considered to be “superfoods.” In fact it is quercetin that is partly responsible for making these foods so healthy.

So, the question people often ask when they’ve read about the health benefits is, “just what is quercetin?” According to an article titled ‘The six health benefits of quercetin’, the website Global Healing Center says that: “Quercetin is an flavonoid (plant pigment) commonly found in fruits and vegetables, especially onions, citrus, and apples.” The article continues, “Other sources include dark berries, grapes and olive oil.”

Of course, the next question is: “what can quercetin do for me?” Here’s the results of a few research studies.

Anti-Inflammatory effect of quercetin

Research done on a variety of diseases has indicated that inflammation – at a cellular level – is often the root of the problem. This means that by reducing inflammation in your body, you can effectively fight off a wide variety of serious diseases, as well as the effects of aging.

Quercetin does this by acting as an antioxidant and removing the free radicals from the body that cause damage at the cellular and even genetic level. By reducing this damage – and therefore by reducing inflammation – you can avoid or reduce diseases such as skin disorders, prostate problems, chronic fatigue syndrome, bladder infections, inflammation of the ovaries, viral infections, gout, cognitive impairment, stomach ulcers, allergies, asthma, diabetes and insulin resistance, heart disease, and high cholesterol.

Dr Nikolas Helberg says on his website: “Quercetin really helps your immune system repair all the damage that is done on a daily basis, so it’s a great supplement to support your immune system.” Dr Helberg continues: “ Since all chronic illnesses are the result of inflammation, and quercetin is a good anti-inflammatory, it could be used for almost anything.”


Spoiler alert. Our muscadines make a powerful quercetin health supplement.


Quercetin could reduce the risk of heart disease

Because of its anti-inflammatory properties, quercetin is excellent for potentially reducing the risk of cardiovascular heart disease.

Because quercetin is an active ingredient in grapes and red wine, this has led to red wine being considered good for your heart.

Heart disease is caused by a build-up of plaque in your arteries which is often the result of an unhealthy diet which is high in saturated fats. Over time, this plaque cuts off or greatly reduces the flow of blood to your heart. By regularly taking supplements that contain quercetin, you will be able to lower your cholesterol levels and blood pressure which will lead to a healthier heart and a lowered risk of heart disease.

The Healthy Heart Guide website lists seven ways that quercetin can protect cardio vascular health.

Increased energy is a quercetin health benefit

As mentioned in the previous paragraph about cardiovascular health benefits, quercetin helps to improve your blood flow … which in turn will help you have more energy, especially during exercise.

A recent study done at the Georgia Institute of Technology revealed that quercetin helped to increase the endurance of their test subjects. Increased energy is important for people who are trying to lose weight for several reasons. First of all, as you make changes in your diet you may find that you have less energy because your body is not used to getting less calories. You will also need more energy to exercise more, which is why supplementing with quercetin can help.

The Livestrong website reports that: “nutrition expert Professor Stephan C. Bischoff at Hohenheim University in Germany to report in 2008, in the journal “Clinical Nutrition & Metabolic Care,” that quercetin is a promising compound for disease prevention and therapy, especially for preventing obesity-related diseases.”

"Quercetin is a promising compound for disease prevention and therapy, especially for preventing obesity-related diseases."

Quercetin can boost the immune system

Getting sick is never fun, and it’s particularly bad for older people and those who are trying to lose weight because it makes it easy to slip back into bad eating and exercise habits when you aren’t feeling well.

However, by taking quercetin regularly, you can give your immune system a boost and maintain overall health. There was one study done on cyclers who found that taking quercetin every day helped prevent them from developing respiratory infections that are common in people who regularly exercise heavily.

The website Quercetin Science writes: “In a randomized, placebo-controlled study, Quercetin helped prevent viral illnesses, like colds and flu, after physical exertion. Following a strenuous 3-day exercise routine, 50 percent of the control group became ill with colds and flu, whereas only five percent of the Quercetin supplemented group did.”

"50 percent of the control group became ill with colds and flu, whereas only five percent of the Quercetin supplemented group did.”

Pain reduction and natural polyphenols like quercetin

Because quercetin is a powerful antioxidant that works to reduce inflammation throughout the body, it can also reduce pain associated with various conditions such as arthritis, infections, and autoimmune disorders.

In fact, there are many people who take quercetin specifically for arthritis as it is considered to be a natural arthritis treatment. By reducing the pain you are experiencing from arthritis or other conditions, you will not only be able to feel better, but you will also be able to be more active and continue to lose weight.

What are the best food sources for quercetin?

Apples, citrus fruits, onions, parsley, red wine and tea are some of the best food sources for quercetin.

Other foods, including beans, bilberries, blackberries, blueberries, dark cherries, grapes, buckwheat, leafy green vegetables and olive oil, also contain some quercetin.

However, to experience the possible beneficial health effects of quercetin, you need to consume more than you get from food alone, according to Tufts New England Medical Center.

About Muscadinex MX1 and quercetin

The American muscadine grape is also a strong source of quercetin. According a study titled ‘Phenolic content and antioxidant capacity of muscadine grapes’ published by the US National Institutes of Health, muscadine grape skins contain (in milligrams per 100g of fresh fruit) ellagic acid (16.5), myricetin (8.4), quercetin (1.8), kaempferol (0.6) and trans-resveratrol (0.1).

Our Muscadinex MX1 longevity supplement is made from muscadine grape seed and muscadine grape skin. Polyphenols like quercetin acid are found in the grape skin … so it is important to choose a product that contains skin AND seed.

You can find out more about Muscadinex MX1 on Amazon.

Medical research reports about quercetin health benefits

The US National Libary of Medicine and the National Institutes of Health have published medical research papers into the various health benefits of quercetin. Please click on a story to find out more.

US National Institutes of Health

The role of quercetin, flavonols and flavones in modulating inflammatory cell function. Click here.


US National Institutes of Health

Does Quercetin Improve Cardiovascular Risk factors and Inflammatory Biomarkers in Women with Type 2 Diabetes? Click here.


US National Institutes of Health

Quercetin and endurance exercise capacity: a systematic review and meta-analysis. Click here.


US National Institutes of Health

Quercetin reduces inflammatory pain: inhibition of oxidative stress and cytokine production. Click here.




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