8 Quercetin with Bromelain for Weight Loss 2024
Quercetin with Bromelain for Weight Loss
Dr Josh Axe also adds that some athletic supplements contain quercetin because some people believe that is increases endurance and athletic performance.
In another study, a combination of Quercetin along with Resveratrol inhibited the formation of mature fat cells, which subsequently resulted in weight loss. Quercetin increases the secretion of the enzyme, triglyceride lipase that breaks down fat, thus aiding in weight loss.
What Is Quercetin?
Quercetin, found concentrated in foods such as onions and apples, reduces the manufacture and release of histamine and other allergic and inflammatory mediators. This flavonoid is also a potent antioxidant and may help protect against diseases like heart disease and cancer.
Bromelain and Quercetin: Uses & Benefits
Studies have shown that systemic enzymes for inflammation (like bromelain) combined with quercetin, produce greater anti-inflammatory benefits than either one used alone. Thus, the combination of bromelain and quercetin is ideal for effectively inhibiting the inflammatory response in both acute and chronic inflammatory conditions.Both bromelain and quercetin supplements are relatively easy to find. But these products are typically sold in combination with other enzymes (e.g., papain, amylase) or antioxidants (vitamin C), and are not as effective in relieving inflammation.
Of the bromelain-only formulations available, many do not provide sufficient dosages to be effective as an anti-inflammatory. Additionally, most of these formulations do not contain quercetin which works with the bromelain to increase the efficacy of both.
Since bromelain and quercetin are recommended to be taken together for maximum anti-inflammatory benefit, formulas that contain both ingredients are ideal. This also simplifies the dosing schedule and reduces the total number of capsules needed to be taken throughout the day.
Quercetin vs Quercetin and Bromelain
Studies have shown that enzyme like bromelain combined with quercetin, produce greater anti-inflammatory benefits vs quercetin used alone. Thus, the combination of bromelain and quercetin is ideal for effectively inhibiting the inflammatory response in both acute and chronic inflammatory conditions.Since bromelain and quercetin are recommended to be taken together for maximum anti-inflammatory benefit, formulas that contain both ingredients are ideal. This also simplifies the dosing schedule and reduces the total number of capsules needed to be taken throughout the day.
Best Quercetin and Bromelain Supplements for Weight Loss
1. Vitaraw Quercetin, Zinc, Bromelain, Vitamin C, Vitamin D3
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- Immunity Booster, Antioxidant & Anti Inflammatory
The Ultimate Immune Defense by Vita RawQuercetin carries anti-aging elements that promote blood sugar levels and stronger endurance while acting as an anti-inflammatory supplement. Bromelain is the principal ingredient that enhances the potency and absorption of Quercetin.
An all-in-one premium daily immune vitamin made with top quality nutrients at optimal doses. Stay healthy, happy, and energized with a powerhouse multi-vitamin that naturally strengthen your body's defense system.*
An Advanced Formulation Immune Booster For Adults*Experience a robust antioxidant for cardiovascular and digestive health with VitaRaw's Quercetin + Bromelain + Stinging Nettle Root + Vitamin C with Zinc for adults. Fused with 50 mg of Zinc and 500mg of Vitamin C & Quercetin that reinforces immunity, strong bones, balanced energy levels, and proper growth of the body.*
*These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
- Gluten-Free & Gelatin-Free- Vegan & Vegetarian Friendly- Made With Non-GMO Ingredients- Safe, Pure, High-Quality Supplements
Quercetin Bromelain with Stinging Nettle Root- Healthy Digestion & Immune Function Support*- Strong Antioxidant Properties To Protect The Body From Free Radicals**- Added Bromelain for Maximum Absorption*- Maintains General Health*
Dosage (per capsule) : Quercetin 250mg Supplement, Zinc 25mg, Vitamin C 250mg, Vitamin D3 63mg, Bromelain 75mg
Ratings : 4.6 out of 5 - more than 1,100 global ratings
I started taking this when I began feeling like a cold was coming on. My throat was really bothering me, I had a bad headache, and I was sneezing. Quite honestly, I thought it was something worse than I cold but I remained optimistic. I took the Quercetin immediately and I felt better in a couple days. From my experience, it seemed to prevent my symptoms from worsening. My back also feels a little better. I sit a lot so this supplement might be helping with the discomfort I normally have.
2. Thorne Research Quercenase
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Quercenase is a combination of quercetin phytosome and bromelain. Quercetin phytosome is a new food-grade lecithin-based formulation of quercetin, was developed to overcome the low bioavailability hurdle of quercetin. Phytosome complexes are created by a patented process that binds a botanical extract to a phospholipid (phosphatidylcholine), which are key components of every cell membrane.
- Each capsule contains 250 mg of quercetin phytosome and 100 mg of bromelain.
- BestReviews.com: Pricier than many similar products on the market
- Amazon Best Sellers: #11 Best Seller in Flavonoid Vitamin Supplements
- Our Take: If you are looking to buy from a reputable brand, this would be your choice.
Review
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Uniquely formulated using a blend of quercetin and bromelain, this supplement from ForestLeaf may help with sinus relief, allergies, cardiovascular and respiratory health.
- Advanced Sinus and Allergy Supplement - Natural Vegetable Capsules - Non GMO, Dairy, Gluten, Egg and Nut Free - Every pill contains stinging nettle leaf extract. - All of its products and pills are tested for maximum absorption. - 45 servings per bottle, 200mg of vitamin C per serving.
IngredientsVitamin C 200mg, Quercetin 500mg, Stinging Nettle Leaf 500mg, Bromelain 150mg, Vegetable Cellulose (capsule), Microcrystalline Cellulose, Magnesium Stearate and Silicon Dioxide
I have year round allergies and lately what I had been taking wasn't working and my eyes were always running. It was extremely annoying and frustrating to be crying from one eye all day. I read the reviews and decided to try this. I've been taking them twice a day since March 1st and I stopped crying the first day. I love these natural pills. They work!!!!
4.6 out of 5 - more than 2,000 global ratings
4. Whole Food Quercetin Plus
- Quercetin with Bromelain-Zinc-Vitamin C-Ginger-Bioflavonoids
- Organic Whole Foods
- Immune, Cardiovascular & Respiratory System Support
- Natural Antioxidant
- Vegan, Non-GMO
- 180 Caps, 90 servings
-Immunity supporting properties, improves healthy seasonal immune system function, and reduces inflammation. - May help improve your daily health by aiding exercise performance, improving digestion, helping respiratory health, give your immune system the boost it needs, and enhance cognitive function.
- FREE from GMO, Alcohol, Preservatives, Soy Lecithin, Gelatin, Dairy, Sugar, Gluten, Shellfish, Nuts, Wheat, Stearates, Silicon Dioxide, fillers, Artificial Ingredients.
- Manufactured in the USA. Made in a GMP-certified facility in the USA. Third-party tested.
Nutrients
Quercetin 500 mg + 175 mg of Organic Whole Food Quercetin Blend(4 Organic Whole Food Quercetin source ingredients) + 15 mg of Zinc Picolinate + 200 mg of Bromelain from Pineapple + 100 mg of Organic Ginger Root + 125 mg of Vitamin C from Organic Acerola Cherries + 100 mg of Citrus Bioflavonoids from Organic Orange & Organic Lemon
Review
I am able to do much more before having to take a rest break. Also I have notice a very marked drop in BG an hour after taking. Definitely recommend.
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4. Whole Food Quercetin Plus
- Quercetin with Bromelain-Zinc-Vitamin C-Ginger-Bioflavonoids
- Organic Whole Foods
- Immune, Cardiovascular & Respiratory System Support
- Natural Antioxidant
- Vegan, Non-GMO
- 180 Caps, 90 servings
-Immunity supporting properties, improves healthy seasonal immune system function, and reduces inflammation.
- FREE from GMO, Alcohol, Preservatives, Soy Lecithin, Gelatin, Dairy, Sugar, Gluten, Shellfish, Nuts, Wheat, Stearates, Silicon Dioxide, fillers, Artificial Ingredients.
- Manufactured in the USA. Made in a GMP-certified facility in the USA. Third-party tested.
Nutrients
Quercetin 500 mg + 175 mg of Organic Whole Food Quercetin Blend(4 Organic Whole Food Quercetin source ingredients) + 15 mg of Zinc Picolinate + 200 mg of Bromelain from Pineapple + 100 mg of Organic Ginger Root + 125 mg of Vitamin C from Organic Acerola Cherries + 100 mg of Citrus Bioflavonoids from Organic Orange & Organic Lemon
Review
I am able to do much more before having to take a rest break. Also I have notice a very marked drop in BG an hour after taking. Definitely recommend.
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5. Doctor's Best Quercetin Bromelain
- Non-GMO, Vegan, Gluten Free, Soy Free- 180 Veggie Caps
- Bromelain 3000 GDU per capsule, has 500 Mg of Quercetin with 250 Mg Bromelain for a Serving size of 2 Capsules- Quercetin and Bromelain enhances each other's antioxidant and anti-inflammatory potential. Quercetin is a bioflavonoid that has potent antioxidants while bromelain works as protein-digesting enzyme. Bromelain helps increase your body’s absorption and use of Quercetin.- Helps support immune health, heart health, joint comfort, healthy digestions, respiratory health and inflammatory response.- Quercetin helps ensure appropriate immune response, inhibits formation of free radicals and promotes circulatory health in part by supporting the integrity of small blood vessels.
i have sleep apnea and have TO sit up in a recliner to sleep because i can not use a CPAP. QUERCETIN CLEARS MY SINUS SO BOTH NOSTRILS ARE OPENED WITH OUT ANY NEGATIVE PHARMCEUUTICAL DRUG SIDE EFFECTS . i now sleep lying flat. thank you drs best. you formula.
4.7 out of 5 - more than 2,000 global ratings
5. Doctor's Best Quercetin Bromelain
- Non-GMO, Vegan, Gluten Free, Soy Free
6. Nature's Life Bromelain Sinus Ease
7. MoxyVites Quercetin 500mg with Bromelain Supplement
- Bioactive Phytosome Complex
- Pure Organic Whole Food Seasonal Support
- Healthy Inflammatory Response
-120 Caps
- Plant Based
- Made in USA
- Quercetin, Phytosome, Bromelain
- All Natural, Organic, Vegan, Vegetarian, Gluten Free, Non GMO, No Artificial or Synthetic Ingredients
- GMP certified facility, THIRD PARTY TESTED!
- IMPROVED ORAL ABSORPTION BY 20X
> Regular quercetin has poor solubility and low oral absorption. Our technology binds quercetin with a glucose bond & incorporation of phospholipids into standardized extracts improving the absorption and bioavailability by 20X. If you settle for regular quercetin your body may only absorb 20% with minimal to no benefit.
- BIOACTIVE FORM OF QUERCETIN
> Our complex delivery system utilizes phytosome technology in which phytoconstituents react with phospholipids for better and improved bioavailability. Our quercetin is one of the most effective on the market today!
- NATURAL SEASONAL RELIEF
> Nutritional support from carefully selected WHOLE FOODS containing the highest amounts of quercetin with powerful antioxidants. Backed by science to provide all year support for individuals with allergies
- POWERFUL BENEFITS
> Powerful antioxidant, healthy inflammatory responses, boost the immune system, reduce histamines and skin irritations, supports cardiovascular & cellular health.
- PHARMACEUTICAL GRADE:
> Highly bioavailable & Potent 500mg serving with 120 capsules in a bottle.
Ratings
4.7 out of 5 - more than 1,000 global ratings on Amazon
Review
This is the best quercetin I found on the market! It was a revelation to me to discover that regular quercetin is difficult for the body to absorb. After doing my research I discovered that quercetin phytosome has much greater absorption and is therefore more effective. I have been taking this for over a month and my allergy symptoms have been reduced tremendously. In addition, this company added specific Whole Foods that contain the highest amount of added quercetin for additional quercetin benefits. Besides allergies I also take this for it’s high anti oxidants and many other health benefits. I love this brand and I will continue to buy their products.
8. Mt. Angel Vitamins - Quercetin Nettle +
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Quercetin and Bromelain Side Effects
According to WebMD, quercetin is POSSIBLY SAFE for most people when taken by mouth on a short-term basis. Quercetin has been safely used in amounts up to 500 mg twice daily for 12 weeks. It is not known if long-term use or higher doses are safe.
When taken by mouth, quercetin could cause headache and tingling of the arms and legs. Very high doses might cause kidney damage.
According to Brent Bauer, M.D., at the Mayo Clinic, “Bromelain, the enzyme from the pineapple, may have anti-platelet activity. So for people taking blood thinners or who have anti-platelet activity, theoretically there could be increased risk of bleeding.”
Those who are taking blood thinners or have concern about the adverse effects of bromelain, should consider quercetin supplements that do not contain bromelain.
When taken by mouth, quercetin could cause headache and tingling of the arms and legs. Very high doses might cause kidney damage.
Those who are taking blood thinners or have concern about the adverse effects of bromelain, should consider quercetin supplements that do not contain bromelain.
Frequently Asked Questions About Quercetin
Q: Inflammation vs Allergies vs Hives vs Sinusitis?Confused? In general, there are two types of allergies; generalised and local. Hives are generalised allergies, could be triggered by food (e.g. peanuts) or antibiotics or certain medications. Local allergies instead affect a certain area of the body e.g. scalp (allergic to hair dye) or face (allergic to certain make-up).
Allergies are triggered by allergens (an allergen is normally a foreign substance that can cause an allergic reaction) leading to inflammation. However, inflammation can also be triggered not only by allergens but also by bacterial or viral infections.
For example an acne is a skin infection with inflammation. Inflammation associated with an infection is not considered an allergy. Therefore, the treatment approach is different.
Sinusitis basically means inflammation of the nasal sinuses (refer to the figure above). It could be related to an allergy or infection.
Q: What Foods are High in Quercetin?
There are foods high in quercetin that you can add to your diet. Arguably, red onions are some of the most potent sources of quercetin; one study found that absorption of onion-derived quercetin was 52% compared to only 24% in supplement form. In fact, onions can give you three times the amount of quercetin than you’d get from apples. Other food sources that are high in quercetin include:
- Organically grown apples, grapes and tomatoes- Dark cherries and dark berries like blueberries, blackberries and bilberries (eaten in moderation)- Cocoa, unsweetened- Hot green chili peppers- Lingonberries
Q: What are the Dosages for Quercetin and Bromelain?
Allergies are triggered by allergens (an allergen is normally a foreign substance that can cause an allergic reaction) leading to inflammation. However, inflammation can also be triggered not only by allergens but also by bacterial or viral infections.
Bromelain Dosage: Look for MCUs (Milk Clotting Units)
Unlike many vitamins and minerals, which are measured by weight (e.g., mg or mcg), bromelain is measured by either milk clotting units (MCUs) or gelatin dissolving units (GDUs).
As a result, the best measure of a bromelain-containing supplement’s efficacy is based on MCUs or GDUs and not milligrams.
MCUs and GDUs are used somewhat interchangeably (1 GDU equals 1.5 MCU) and relate to the activity level of the bromelain. Since bromelain is an enzyme, a measure of its strength is how quickly it can breakdown a protein.
To be effective, at least 3,000 MCUs of bromelain must be consumed in divided amounts during the course of a day.
To ensure that the bromelain works on the site of injury and not in aiding digestion, it is best to take it on an empty stomach.
As a result, the best measure of a bromelain-containing supplement’s efficacy is based on MCUs or GDUs and not milligrams.
MCUs and GDUs are used somewhat interchangeably (1 GDU equals 1.5 MCU) and relate to the activity level of the bromelain. Since bromelain is an enzyme, a measure of its strength is how quickly it can breakdown a protein.
To be effective, at least 3,000 MCUs of bromelain must be consumed in divided amounts during the course of a day.
To ensure that the bromelain works on the site of injury and not in aiding digestion, it is best to take it on an empty stomach.
Quercetin Dosage: 500 - 2,500 mg
For quercetin, dosing is measured in milligrams (mg). The recommended dosage varies based on the type and extent of the issue to be treated. Dosages can range from 500 – 2,500 mg per day, in divided doses.
According to WebMD, quercetin is POSSIBLY SAFE for most people when taken by mouth on a short-term basis. Quercetin has been safely used in amounts up to 500 mg twice daily for 12 weeks. It is not known if long-term use or higher doses are safe.
Q: Bromelain and Quercetin: Before or After a Surgical Procedure?
Bromelain should be taken 72 hours or 3 days prior to surgery. Bromelain should be continued for 7 days following surgery. Following trauma or injury, Bromelain should be started as quickly as possible and continued for 10 days.
Whether you are trying to hide the visible signs of post-procedure swelling, or are simply recovering from an injury, bromelain and quercetin are the best natural anti-inflammatory supplements to get you on the road to recovery.
Q: What are the best foods for quercetin?
A: Capers, peppers (yellow and green), onions (red and white), shallots, asparagus, cherries, tomatoes, red apples, red grapes, broccoli, kale, red leaf lettuce, cranberries, blueberries, raspberries, green tea, black tea, and coffee are all excellent foods for quercetin.
Q: Do you get enough quercetin in your daily diet?
A: The average person gets 10 to 100 mg of quercetin per day through normal dietary sources. This can vary greatly. Carefully track your diet over an extended period to figure out if you have a dietary deficiency of quercetin.
Q: How much quercetin should you take per day?
A: Researchers typically use a dose of 500 mg of quercetin per day in supplement form. Most quercetin supplements contain between 500 and 1200 mg of quercetin, although this can vary. Check out the nutritional label for your quercetin supplement to be sure.
Q: Does quercetin help allergies?
A: Many people take quercetin supplements to avoid allergy symptoms. There’s evidence that quercetin has powerful anti-allergy benefits, although more research needs to be done.
Q: Does quercetin fight cancer?
A: Early research in test tube and animal models shows that quercetin may have cancer-fighting properties. While these findings are promising, more large scale human studies need to be performed. Research is not definitive. Consult your physician before using any supplement to improve your cancer.
Q: Does quercetin reduce the risk of Alzheimer’s?
A: Studies show that quercetin may reduce the onset of Alzheimer’s, particularly in the early and middle stages of the condition. However, studies have mostly been performed on mice and test tubes – not in humans.
Q: What are other names for quercetin?
A: Quercetin goes by a number of different names. You might see quercetin supplements labeled as bioflavonoid concentrate, bioflavonoid extract, or citrus bioflavonoid, for example.
Q: Can quercetin help you recover after exercise?
A: Some studies show that quercetin boosts recovery after exercise. In some small studies, athletes taking quercetin after exercise had faster recovery than a control group. Researchers believe quercetin reduces oxidative stress and post-exercise inflammation, helping your body recover.
Q: What are the side effects of quercetin?
A: Most people experience no side effects from quercetin, and any side effects tend to be mild. Quercetin side effects include tingling and numbness, headache, and nausea. Your chance of experiencing side effects increases at higher dosages (over 1,000mg).
Q: Why do so many quercetin supplements contain bromelain?
A: Bromelain is a naturally occurring, protein-digesting enzyme found in the stem of the pineapple. Bromelain seems to boost the absorption of quercetin by inhibiting inflammatory chemicals called prostaglandins. Bromelain may also decrease inflammation on its own.
Your body doesn’t absorb quercetin very effectively on its own. Some studies have shown that bromelain boosts the absorption of quercetin, which is why you find bromelain (or vitamin C) in many quercetin supplements.
Q: What’s the difference between rutin or glycosidic quercetin?
A: Quercetin is found in two forms, including in rutin or glycosidic form. Quercetin glucosides, such as isoquercitrin and isoquercetin, seem to be much more bioavailable and more quickly absorbed than quercetin aglycone or quercetin glycosides, such as rutin (quercetin rutinoside).
Q: Can you overdose on quercetin?
A: In one study, researchers gave participants 2,000mg to 5,000mg of quercetin per day with no adverse effects or signs of toxicity reported. Generally, quercetin is safe to take even in high doses, although you may experience mild side effects like nausea, digestive issues, and headaches at high doses. Excessively high doses of quercetin could lead to kidney problems.
Q: How much quercetin should you take for hay fever?
A: Experts recommend taking 400mg of quercetin twice a day between meals for hay fever. Also consult your doctor to help provide a more comprehensive and effective treatment for hay fever.
Q: Can children take quercetin?
A: Most studies suggest that it’s safe to give quercetin to your child, although you should use only half the dose you'd use on an adult. Talk to your pediatrician before giving any quercetin to your child.
Q: How does quercetin manage allergy symptoms?
A: Studies have shown that quercetin stabilizes mast cells that release histamine. Histamine is the principal mediator of reactions to pollen and other allergies. This makes quercetin a natural antihistamine. Many people use quercetin to treat symptoms of hay fever, including runny nose, watering eyes, and itching.
Q: Can you take too much quercetin?
A: You should start with a quercetin dosage of around 500mg per day to assess your tolerance. However, researchers have given participants up to 5,000mg of quercetin per day with few reported side effects. Look for symptoms like upset stomach and diarrhea. Excessively high doses of quercetin could lead to kidney problems.
Q: Who should not take a quercetin supplement?
A: Quercetin appears safe for anyone to take when used in normal dosages. However, there’s limited research on how quercetin supplements affect women who are pregnant or breastfeeding. People with high blood pressure, or anyone taking blood pressure medication, may also want to take to their doctor before taking a quercetin supplement.
Q: Can you take a quercetin supplement with a pineapple allergy?
A: If you’re allergic to pineapples, you should avoid quercetin supplements with bromelain. Bromelain, an enzyme in pineapples, is added to quercetin supplements to boost bioavailability. Overuse of bromelain can create problems for consumers.
Q: Does quercetin work for anti-aging?
A: Several studies have examined the effect of quercetin on aging. Quercetin is rich with anti-inflammatories and antioxidants, which could make it a powerful anti-aging compound.
Q: Does quercetin help asthma?
A: Quercetin may help asthma by relaxing smooth muscles lining the airway, improving airway flow.
Q: What’s better – quercetin tablets, capsules, powders, or liquid?
A: Quercetin liquid claims to be more bioavailable than other sources of quercetin. You take the liquid sublingually (underneath your tongue). However, limited research shows quercetin capsules or powders are more effective, and all forms of quercetin are absorbed poorly by the body.
Q: Where does quercetin come from?
A: Most supplement companies use various plant or vegetable-based sources of quercetin. Check the label.
Q: Can you get citrus-free quercetin?
A: Some quercetin supplements are specifically marketed as citrus-free, making them ideal for those with citrus sensitivities. Read the label or official product website for your supplement to be sure that it is actually citrus-free.
Q: Does quercetin help with diabetes?
A: There’s some evidence that quercetin helps with diabetes, helping your body manage blood sugar levels during fasting. However, more research needs to be done to verify these benefits.
Q: Is quercetin non-GMO?
A: Quercetin supplements are generally labeled non-GMO. Check the label to verify your quercetin supplement is not made from genetically modified ingredients.
Whether you are trying to hide the visible signs of post-procedure swelling, or are simply recovering from an injury, bromelain and quercetin are the best natural anti-inflammatory supplements to get you on the road to recovery.
Q: What are the best foods for quercetin?
A: Capers, peppers (yellow and green), onions (red and white), shallots, asparagus, cherries, tomatoes, red apples, red grapes, broccoli, kale, red leaf lettuce, cranberries, blueberries, raspberries, green tea, black tea, and coffee are all excellent foods for quercetin.
Q: Do you get enough quercetin in your daily diet?
A: The average person gets 10 to 100 mg of quercetin per day through normal dietary sources. This can vary greatly. Carefully track your diet over an extended period to figure out if you have a dietary deficiency of quercetin.
Q: How much quercetin should you take per day?
A: Researchers typically use a dose of 500 mg of quercetin per day in supplement form. Most quercetin supplements contain between 500 and 1200 mg of quercetin, although this can vary. Check out the nutritional label for your quercetin supplement to be sure.
Q: Does quercetin help allergies?
A: Many people take quercetin supplements to avoid allergy symptoms. There’s evidence that quercetin has powerful anti-allergy benefits, although more research needs to be done.
Q: Does quercetin fight cancer?
A: Early research in test tube and animal models shows that quercetin may have cancer-fighting properties. While these findings are promising, more large scale human studies need to be performed. Research is not definitive. Consult your physician before using any supplement to improve your cancer.
Q: Does quercetin reduce the risk of Alzheimer’s?
A: Studies show that quercetin may reduce the onset of Alzheimer’s, particularly in the early and middle stages of the condition. However, studies have mostly been performed on mice and test tubes – not in humans.
Q: What are other names for quercetin?
A: Quercetin goes by a number of different names. You might see quercetin supplements labeled as bioflavonoid concentrate, bioflavonoid extract, or citrus bioflavonoid, for example.
Q: Can quercetin help you recover after exercise?
A: Some studies show that quercetin boosts recovery after exercise. In some small studies, athletes taking quercetin after exercise had faster recovery than a control group. Researchers believe quercetin reduces oxidative stress and post-exercise inflammation, helping your body recover.
Q: What are the side effects of quercetin?
A: Most people experience no side effects from quercetin, and any side effects tend to be mild. Quercetin side effects include tingling and numbness, headache, and nausea. Your chance of experiencing side effects increases at higher dosages (over 1,000mg).
Q: Why do so many quercetin supplements contain bromelain?
A: Bromelain is a naturally occurring, protein-digesting enzyme found in the stem of the pineapple. Bromelain seems to boost the absorption of quercetin by inhibiting inflammatory chemicals called prostaglandins. Bromelain may also decrease inflammation on its own.
Q: What’s the difference between rutin or glycosidic quercetin?
A: Quercetin is found in two forms, including in rutin or glycosidic form. Quercetin glucosides, such as isoquercitrin and isoquercetin, seem to be much more bioavailable and more quickly absorbed than quercetin aglycone or quercetin glycosides, such as rutin (quercetin rutinoside).
Q: Can you overdose on quercetin?
A: In one study, researchers gave participants 2,000mg to 5,000mg of quercetin per day with no adverse effects or signs of toxicity reported. Generally, quercetin is safe to take even in high doses, although you may experience mild side effects like nausea, digestive issues, and headaches at high doses. Excessively high doses of quercetin could lead to kidney problems.
Q: How much quercetin should you take for hay fever?
A: Experts recommend taking 400mg of quercetin twice a day between meals for hay fever. Also consult your doctor to help provide a more comprehensive and effective treatment for hay fever.
Q: Can children take quercetin?
A: Most studies suggest that it’s safe to give quercetin to your child, although you should use only half the dose you'd use on an adult. Talk to your pediatrician before giving any quercetin to your child.
Q: How does quercetin manage allergy symptoms?
A: Studies have shown that quercetin stabilizes mast cells that release histamine. Histamine is the principal mediator of reactions to pollen and other allergies. This makes quercetin a natural antihistamine. Many people use quercetin to treat symptoms of hay fever, including runny nose, watering eyes, and itching.
Q: Can you take too much quercetin?
A: You should start with a quercetin dosage of around 500mg per day to assess your tolerance. However, researchers have given participants up to 5,000mg of quercetin per day with few reported side effects. Look for symptoms like upset stomach and diarrhea. Excessively high doses of quercetin could lead to kidney problems.
Q: Who should not take a quercetin supplement?
A: Quercetin appears safe for anyone to take when used in normal dosages. However, there’s limited research on how quercetin supplements affect women who are pregnant or breastfeeding. People with high blood pressure, or anyone taking blood pressure medication, may also want to take to their doctor before taking a quercetin supplement.
Q: Can you take a quercetin supplement with a pineapple allergy?
A: If you’re allergic to pineapples, you should avoid quercetin supplements with bromelain. Bromelain, an enzyme in pineapples, is added to quercetin supplements to boost bioavailability. Overuse of bromelain can create problems for consumers.
Q: Does quercetin work for anti-aging?
A: Several studies have examined the effect of quercetin on aging. Quercetin is rich with anti-inflammatories and antioxidants, which could make it a powerful anti-aging compound.
Q: Does quercetin help asthma?
A: Quercetin may help asthma by relaxing smooth muscles lining the airway, improving airway flow.
Q: What’s better – quercetin tablets, capsules, powders, or liquid?
A: Quercetin liquid claims to be more bioavailable than other sources of quercetin. You take the liquid sublingually (underneath your tongue). However, limited research shows quercetin capsules or powders are more effective, and all forms of quercetin are absorbed poorly by the body.
Q: Where does quercetin come from?
A: Most supplement companies use various plant or vegetable-based sources of quercetin. Check the label.
Q: Can you get citrus-free quercetin?
A: Some quercetin supplements are specifically marketed as citrus-free, making them ideal for those with citrus sensitivities. Read the label or official product website for your supplement to be sure that it is actually citrus-free.
Q: Does quercetin help with diabetes?
A: There’s some evidence that quercetin helps with diabetes, helping your body manage blood sugar levels during fasting. However, more research needs to be done to verify these benefits.
Q: Is quercetin non-GMO?
A: Quercetin supplements are generally labeled non-GMO. Check the label to verify your quercetin supplement is not made from genetically modified ingredients.
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