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(FROM USA) Doctor's Best Quercetin Bromelain, Immunity Support, Heart, Joint

    (FROM USA) Doctor's Best Quercetin Bromelain, Immunity Support, Heart, Joint

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    Product ID : 218493829
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    Dimension (WxLxH) : 6.1cm x 6.1cm x 11.18cm


    (FROM USA) Doctor's Best Quercetin Bromelain, Immunity Support, Heart, Joint

    (FROM USA) Doctor's Best Quercetin Bromelain, Immunity Support, Heart, Joint


    (FROM USA) Doctor's Best Quercetin Bromelain, Immunity Support, Heart, Joint


    (FROM USA) Doctor's Best Quercetin Bromelain, Immunity Support, Heart, Joint

    (FROM USA) Doctor's Best Quercetin Bromelain, Immunity Support, Heart, Joint & Healthy Respiratory System, Non-GMO, Vegan, Gluten Free, Soy Free,180 VC

    Quercetin Bromelain supplies the flavonoid quercetin extracted from seed pods of the Dimorphandra mollis plant. Flavonoids are potent protective nutrients found in many plants and foods. Bromelain is an enzyme derived from pineapple.
    • POTENT COMBINATION - Quercetin 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 is an enzyme extracted from the stem of the pineapple. Bromelain helps increase your body’s absorption and use of Quercetin.
    • QUERCETIN BROMELAIN HEALTH BENEFITS - help support immune health, heart health, joint comfort, healthy digestions, respiratory health and inflammatory response supporting overall well-being.
    • IMMUNE SYSTEM - 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. Studies have shown that Quercetin can also support healthy airway function by maintaining a healthy balance of immune system cells within the respiratory system.
    • DIETARY SUPPLEMENT - High Potency Bromelain 3000 GDU per capsule, has 500 Mg of Quercetin with 250 Mg Bromelain in a serving size of 2 Veggie Capsules
    • Non-GMO and Gluten Free
    ,

    *These statements have not been evaluated by the Food and Drug Administration. This product in not intended to diagnose, treat, cure or prevent any disease

    ,

    Flavonoids are some of the most abundant and diversely acting ingredients in nature. Despite a staggering accumulation of quercetin literature to date, there is still a long way to go in clinically studying this compound to confirm the preclinical evidence that suggests numerous avenues of health promotion. While the initial focus was on the radical-scavenging abilities of quercetin, it is still unclear to what extent the potential of this characteristic is realized within the human body. Nonetheless, the totality of notable scientific studies together indicates benefits of increased dietary quercetin.

    May Support a Healthy Cardiovascular System*

    Scientific interest towards quercetin’s potential to support the cardiovascular system was in part generated by results of the epidemiological Zutphen Elderly Study, which suggested that an increased intake of flavonoids, principally represented by intake of quercetin from tea, onions, and apples, was a factor associated with superior cardiovascular health in the participating elderly men.4 The finding was still significant when adjustments were made for other factors such as age, smoking, blood lipid profile, blood pressure, body-mass index, physical activity, and intake of dietary fiber and other antioxidants like vitamin C and vitamin E.

    More recent research in humans, building upon a vast collection of animal and in vitro quercetin studies, has suggested mechanisms behind how quercetin may support a healthy cardiovascular system. Some of the key research suggests that quercetin supports the function of the endothelium, the interface of the vascular system where oxygen and carbon dioxide are exchanged. In one such study (a randomized, placebo-controlled, acute crossover trial), 200 mg of quercetin administered to healthy men apparently was able to modulate circulating concentrations of nitric oxide,5 an important messenger the body naturally produces to support the healthy flow of blood.

    Quercetin has also been highlighted as a compound that holds potential in helping to maintain the normal structure and function of endothelial tissue.6 Since it is generally not feasible to pursue this line of research within the human body, scientists currently rely greatly on in vitro and ex vivo studies to support their theories of why quercetin appears to confer these types of benefits in the cardiovascular arena. The fact that ingesting quercetin from food or supplements can increase blood levels of quercetin is an important factor to consider when evaluating such preclinical research.7 A recent randomized, double-blinded, placebo-controlled study of 1,023 participants found that daily doses of 500 or 1,000 mg of quercetin produced a significant dose-related increase in blood levels of quercetin in the first month, a gain that was then maintained for the duration of the 12-week study.8 (In this study, vitamin C and niacin were taken concurrently with the quercetin).

    May Support a Healthy Respiratory System*

    Human epidemiologic research suggests a relationship between quercetin intake and healthy lung function.11 In vitro and animal research models are largely in agreement with this finding, also suggesting mechanisms by which quercetin may support healthy respiratory function. Currently, there is some evidence from human studies suggesting that the respiratory system might be supported by quercetin intake, particularly when quercetin is given with vitamin C (a common combination in many food sources of quercetin). For instance, in a randomized, double-blinded, placebo-controlled study of 1,002 participants, the combination of 1,000 mg per day of quercetin with 1,000 mg of vitamin C (plus niacin) for 12 weeks produced some benefit in this area of health among a subgroup of participants over the age of 40 who rated themselves as physically fit.12 There is also some hope that quercetin may help promote healthy airway function in other ways; at least in preliminary work in guinea pigs, quercetin showed a propensity for helping respiratory function of the guinea pigs when challenged with a substance to which the guinea pigs had been sensitized.13 Additionally, a recent mouse model has generated some anticipation that quercetin may support healthy airway function by maintaining a healthy balance of immune system cells within the respiratory system.14 A fairly similar mouse study using Bromelain found that this ingredient also achieved desirable physiological effects.15

    ,

    Flavonoids are some of the most abundant and diversely acting ingredients in nature. Despite a staggering accumulation of quercetin literature to date, there is still a long way to go in clinically studying this compound to confirm the preclinical evidence that suggests numerous avenues of health promotion. While the initial focus was on the radical-scavenging abilities of quercetin, it is still unclear to what extent the potential of this characteristic is realized within the human body. Nonetheless, the totality of notable scientific studies together indicates benefits of increased dietary quercetin.

    May Support a Healthy Cardiovascular System*

    Scientific interest towards quercetin’s potential to support the cardiovascular system was in part generated by results of the epidemiological Zutphen Elderly Study, which suggested that an increased intake of flavonoids, principally represented by intake of quercetin from tea, onions, and apples, was a factor associated with superior cardiovascular health in the participating elderly men.4 The finding was still significant when adjustments were made for other factors such as age, smoking, blood lipid profile, blood pressure, body-mass index, physical activity, and intake of dietary fiber and other antioxidants like vitamin C and vitamin E.

    More recent research in humans, building upon a vast collection of animal and in vitro quercetin studies, has suggested mechanisms behind how quercetin may support a healthy cardiovascular system. Some of the key research suggests that quercetin supports the function of the endothelium, the interface of the vascular system where oxygen and carbon dioxide are exchanged. In one such study (a randomized, placebo-controlled, acute crossover trial), 200 mg of quercetin administered to healthy men apparently was able to modulate circulating concentrations of nitric oxide,5 an important messenger the body naturally produces to support the healthy flow of blood.

    Quercetin has also been highlighted as a compound that holds potential in helping to maintain the normal structure and function of endothelial tissue.6 Since it is generally not feasible to pursue this line of research within the human body, scientists currently rely greatly on in vitro and ex vivo studies to support their theories of why quercetin appears to confer these types of benefits in the cardiovascular arena. The fact that ingesting quercetin from food or supplements can increase blood levels of quercetin is an important factor to consider when evaluating such preclinical research.7 A recent randomized, double-blinded, placebo-controlled study of 1,023 participants found that daily doses of 500 or 1,000 mg of quercetin produced a significant dose-related increase in blood levels of quercetin in the first month, a gain that was then maintained for the duration of the 12-week study.8 (In this study, vitamin C and niacin were taken concurrently with the quercetin).

    May Support a Healthy Respiratory System*

    Human epidemiologic research suggests a relationship between quercetin intake and healthy lung function.11 In vitro and animal research models are largely in agreement with this finding, also suggesting mechanisms by which quercetin may support healthy respiratory function. Currently, there is some evidence from human studies suggesting that the respiratory system might be supported by quercetin intake, particularly when quercetin is given with vitamin C (a common combination in many food sources of quercetin). For instance, in a randomized, double-blinded, placebo-controlled study of 1,002 participants, the combination of 1,000 mg per day of quercetin with 1,000 mg of vitamin C (plus niacin) for 12 weeks produced some benefit in this area of health among a subgroup of participants over the age of 40 who rated themselves as physically fit.12 There is also some hope that quercetin may help promote healthy airway function in other ways; at least in preliminary work in guinea pigs, quercetin showed a propensity for helping respiratory function of the guinea pigs when challenged with a substance to which the guinea pigs had been sensitized.13 Additionally, a recent mouse model has generated some anticipation that quercetin may support healthy airway function by maintaining a healthy balance of immune system cells within the respiratory system.14 A fairly similar mouse study using Bromelain found that this ingredient also achieved desirable physiological effects.15

    ,

    Areas for further research

    Mixed results have been seen with quercetin supplementation in Sports Nutrition studies.16 In one study, untrained young adult men took either 1,000 mg of quercetin or placebo for 2 weeks. The enhancement reported was a net change in distance achieved during a 12-minute exercise trial in the men administered quercetin. In another study, this time with elite athletes, 11 male cyclists were administered an antioxidant vitamin regimen, with or without quercetin.17 Six weeks of the regimen with quercetin (without changes to the cyclists diet, training, or competition schedules) significantly improved high-intensity cycling time trial performance during the competitive road racing session.

    Finally, quercetin may be helpful for support of the prostate. Not uncommonly, aging men are concerned with prostate-related pelvic comfort.18 While the underlying means of support are not entirely clear, there is some early science suggesting that quercetin may promote pelvic comfort for a majority of men in this category.19

    Bromelain to Enhance Quercetin

    Bromelain has been used in conjunction with quercetin experimentally, as researchers have reason to believe that bromelain may enhance the transport of the bioflavonoids (like quercetin) across the intestinal membrane. At the end of a randomized, double-blinded, placebo-controlled study where participants were administered 500 mg quercetin twice daily, the researchers continued with an open-label style study that supplemented the 500 mg quercetin twice daily with bromelain and papain also. The bromelain and papain apparently contributed greatly to the desired outcome, improving upon the results from quercetin given alone.19

    Safety

    Quercetin/Bromelain should be used with caution in individuals on anticoagulant therapy.

    Studies of quercetin’s potential to modify drug metabolism have yielded inconsistent results between in vitro and in vivo work. For example, quercetin has been shown in vitro to inhibit CYP2C8 (a metabolic enzyme), yet in a clinical study of quercetin's effects on the metabolism of rosiglitazone (a drug metabolized by CYP2C8), 3 weeks of quercetin supplementation did not impact the subsequent pharmacokinetics of rosiglitazone.20 Consult your health care provider if you are concerned with potential interactions between quercetin and any medications you may be taking.

    Scientific References - see Doctor's Best website for references

    ,

    Areas for further research

    Mixed results have been seen with quercetin supplementation in Sports Nutrition studies.16 In one study, untrained young adult men took either 1,000 mg of quercetin or placebo for 2 weeks. The enhancement reported was a net change in distance achieved during a 12-minute exercise trial in the men administered quercetin. In another study, this time with elite athletes, 11 male cyclists were administered an antioxidant vitamin regimen, with or without quercetin.17 Six weeks of the regimen with quercetin (without changes to the cyclists diet, training, or competition schedules) significantly improved high-intensity cycling time trial performance during the competitive road racing session.

    Finally, quercetin may be helpful for support of the prostate. Not uncommonly, aging men are concerned with prostate-related pelvic comfort.18 While the underlying means of support are not entirely clear, there is some early science suggesting that quercetin may promote pelvic comfort for a majority of men in this category.19

    Bromelain to Enhance Quercetin

    Bromelain has been used in conjunction with quercetin experimentally, as researchers have reason to believe that bromelain may enhance the transport of the bioflavonoids (like quercetin) across the intestinal membrane. At the end of a randomized, double-blinded, placebo-controlled study where participants were administered 500 mg quercetin twice daily, the researchers continued with an open-label style study that supplemented the 500 mg quercetin twice daily with bromelain and papain also. The bromelain and papain apparently contributed greatly to the desired outcome, improving upon the results from quercetin given alone.19

    Safety

    Quercetin/Bromelain should be used with caution in individuals on anticoagulant therapy.

    Studies of quercetin’s potential to modify drug metabolism have yielded inconsistent results between in vitro and in vivo work. For example, quercetin has been shown in vitro to inhibit CYP2C8 (a metabolic enzyme), yet in a clinical study of quercetin's effects on the metabolism of rosiglitazone (a drug metabolized by CYP2C8), 3 weeks of quercetin supplementation did not impact the subsequent pharmacokinetics of rosiglitazone.20 Consult your health care provider if you are concerned with potential interactions between quercetin and any medications you may be taking.

    Scientific References - see Doctor's Best website for references



    What are the benefits of Quercetin Bromelain?



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