Quercetin belongs to a class of water-soluble plant pigments called flavonoids. It can be found in onions, apples, green tea, and black tea. Smaller amounts are found in leafy green vegetables and beans.
What does quercetin do?
Quercetin is a plant flavonoid with antioxidant and anti-inflammatory properties. It is found in many fruits, vegetables, and herbs, including onions, apples, grapes, berries, green tea, and capers.
Quercetin has been shown to have a number of potential health benefits, including:
- Reducing inflammation
- Boosting the immune system
- Protecting against cancer
- Lowering blood pressure
- Improving blood sugar control
- Reducing the risk of heart disease
- Improving allergy symptoms
Quercetin with bromelain benefits
Bromelain is a digestive enzyme found in pineapple. It has anti-inflammatory and pain-relieving properties.
Quercetin and bromelain are often taken together to boost their effectiveness. For example, quercetin and bromelain may be helpful for reducing inflammation and pain associated with arthritis, asthma, and sinusitis.
- Anti-inflammatory: inhibits the release of histamine by influencing two enzymes involved in its release from mast cells. It also decreases prostaglandins which are the chemicals of inflammation.
- Pain Reliever: Compared to aspirin, it has been found to relieve pain and stiffness naturally, whilst fortifying connective tissue. Unlike many glucocorticoids and drugs, quercetin does not cause damage to the gastrointestinal wall.
- Allergies: inhibits the release of histamine reducing the production of inflammatory prostaglandins involved in the allergic response.
- Anti-Viral: works by interfering with enzymes that breakdown the protective protein coat of a virus, preventing replication and infection. It has been shown to stunt the growth of the Herpes virus.
- Collagen Strengthener: As a bioflavonoid, is helpful in supporting collagen structures and preventing collagen destruction.
- Antioxidant: scavenges oxygen radicals and inhibits the harmful effect of oxidation of LDL cholesterol. It is also protective to Vitamin C in the body.
Duration of Quercetin Supplementation and Associated Benefits
Time Frame | Benefits |
---|---|
Short-Term (0-1 week) | – Anti-inflammatory effects may begin to alleviate acute inflammation and reduce pain. |
– Antioxidant activity may help neutralize free radicals and protect cells from oxidative damage. | |
Medium-Term (1-4 weeks) | – Improved cardiovascular health with potential benefits for blood pressure and cholesterol levels. |
– Enhanced immune function, resulting in increased resistance to infections and faster recovery. | |
Long-Term (4+ weeks) | – Long-lasting support for respiratory health, reducing symptoms of allergies and asthma. |
– Potential reduction in the risk of chronic diseases such as cardiovascular disease and cancer. |
Potential Uses
Hayfever | Asthma | Crohns disease |
Ulcerative colitis | Gout | Inflammation |
Bursitis | Migraine | Sciatica and back pain |
Sinusitis | Stomach ulcers |
Quercetin foods
Quercetin is found in many fruits, vegetables, and herbs, including:
- Onions
- Apples
- Grapes
- Berries
- Green tea
- Capers
- Cherries
- Broccoli
- Cauliflower
- Brussels sprouts
- Red wine
- Dark chocolate
Quercetin vitamin
It is not a vitamin. It is a plant flavonoid.
Quercetin for dogs
Quercetin may be beneficial for dogs with a variety of conditions, including allergies, arthritis, and cancer. However, it is important to talk to your veterinarian before giving quercetin to your dog.
The dosage ofit for dogs will vary depending on the size of the dog and the condition being treated. It is important to follow your veterinarian’s instructions carefully.
When to take quercetin
It can be taken at any time of day. However, some people find that it is best to take quercetin with food to reduce stomach upset.
Quercetin for allergies
It may be helpful for reducing allergy symptoms, such as sneezing, runny nose, and itchy eyes.
Quercetin can be taken orally or taken as a nasal spray.
Quercetin dosage
The dosage of quercetin will vary depending on the condition being treated.
For general health benefits, a dosage of 250-500 mg per day is recommended.
For specific conditions, such as allergies or arthritis, a higher dosage may be needed. It is important to talk to your doctor about the best dosage for you.
Quercetin gummies
Quercetin gummies are a convenient way to take this supplement. They are available at most health food stores and online retailers.
Where to buy quercetin
Quercetin is available at most health food stores and online retailers.
Dosage of quercetin for dogs
The dosage of quercetin for dogs will vary depending on the size of the dog and the condition being treated. It is important to talk to your veterinarian about the best dosage for your dog.
What are the side effects of quercetin?
Quercetin is generally safe for most people to take. However, some people may experience side effects, such as stomach upset, headache, and diarrhea.
Quercetin supplement side effects
Quercetin supplements are generally safe for most people to take. However, some people may experience side effects, such as stomach upset, headache, and diarrhea.
It is important to note that quercetin supplements may interact with certain medications, such as blood thinners and diabetes medications. It is important to talk to your doctor before taking quercetin supplements if you are taking any medications.
Cautions
If you take the blood pressure drug felodipine it is best to avoid using quercetin supplements.
Generally, there are no side effects or contra-indications from using quercetin.