Reviewed By
Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 6 Researches
8.2
USERS' SCORE
Good
Based on 3 Reviews
8.7
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
Quercetin
500 mg
†
Top Medical Research Studies
9
Quercetin shows promise for bronchitis
We aimed to gather insights into how quercetin, a component of the herbal preparation Feining Keli (FNKL), may influence chronic bronchitis (CB) treatment. In our study, a rat model of CB was created using a combination of nasal drops of lipopolysaccharide (LPS) and smoking exposure. This model allowed us to evaluate the effectiveness of FNKL in a controlled environment, assessing behavioral changes, body mass, and lung health through various examinations.
Our findings indicated that FNKL has positive effects on CB, showing a potential benefit in alleviating symptoms. One crucial element we identified was quercetin-3-galactoside, which appears to play a significant role in FNKL's effectiveness. We discovered that quercetin might help by reducing inflammation and oxidative stress while regulating metabolic activity associated with bronchitis.
However, it’s important to note that while quercetin is active within the FNKL complex, our study does not isolate its effects from other ingredients. This means that while its importance is highlighted, we cannot conclusively determine quercetin’s standalone effectiveness in treating bronchitis.
Our findings indicated that FNKL has positive effects on CB, showing a potential benefit in alleviating symptoms. One crucial element we identified was quercetin-3-galactoside, which appears to play a significant role in FNKL's effectiveness. We discovered that quercetin might help by reducing inflammation and oxidative stress while regulating metabolic activity associated with bronchitis.
However, it’s important to note that while quercetin is active within the FNKL complex, our study does not isolate its effects from other ingredients. This means that while its importance is highlighted, we cannot conclusively determine quercetin’s standalone effectiveness in treating bronchitis.
Read More
9
We investigated how quercetin, a powerful antioxidant and anti-inflammatory, affects mice exposed to agents that cause chronic bronchitis and emphysema. After treatment with quercetin, these mice showed noticeable improvement in lung function and reduced inflammation.
Moreover, quercetin decreased harmful substances associated with oxidative stress and the activity of certain destructive proteins linked to lung damage. While promising in this animal model, further research is needed to clarify its potential in human cases of bronchitis and COPD.
Moreover, quercetin decreased harmful substances associated with oxidative stress and the activity of certain destructive proteins linked to lung damage. While promising in this animal model, further research is needed to clarify its potential in human cases of bronchitis and COPD.
Read More
8
We began our exploration by analyzing how the Tonifying Spleen-Lung Recipe (TSLR) can help treat chronic bronchitis, a common respiratory issue often marked by persistent coughing and mucus. By including 137 elderly patients undergoing TSLR and comparing them with a control group of 67, we looked into the effective components and mechanisms behind TSLR's impact.
Our findings indicated that TSLR offers significant therapeutic benefits, likely by targeting inflammation through specific protein pathways. This research contributes to understanding how herbal treatments can support respiratory health.
Our findings indicated that TSLR offers significant therapeutic benefits, likely by targeting inflammation through specific protein pathways. This research contributes to understanding how herbal treatments can support respiratory health.
Read More
Most Useful Reviews
10
Improved breathing
20 people found this helpful
WHERE HAVE YOU BEEN ALL MY LIFE? I've suffered from perennial rhinitis and have struggled with bronchitis due to post-nasal drip. After taking Nasonex, I sought an alternative and found this product. After three days, my breathing is now completely unobstructed. This Quercetin formula seems more potent than others I've tried. It’s a wonderful product!
Read More
7.5
Supports immune system
3 people found this helpful
An important natural antioxidant, quercetin aids the body's immune system. It's my first line of defence against colds, SARS, bronchitis, and similar ailments. It has consistently helped me manage seasonal illnesses more efficiently and effectively.
Read More
9
Prevents bronchitis
2 people found this helpful
Excellent for allergies that progress into bronchitis. My husband's usual struggle has been mitigated by administering several of these pills daily. Grateful to Jarrow for this product.
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 6 Researches
8.2
- All Researches
9
Quercetin shows promise for bronchitis
We aimed to gather insights into how quercetin, a component of the herbal preparation Feining Keli (FNKL), may influence chronic bronchitis (CB) treatment. In our study, a rat model of CB was created using a combination of nasal drops of lipopolysaccharide (LPS) and smoking exposure. This model allowed us to evaluate the effectiveness of FNKL in a controlled environment, assessing behavioral changes, body mass, and lung health through various examinations.
Our findings indicated that FNKL has positive effects on CB, showing a potential benefit in alleviating symptoms. One crucial element we identified was quercetin-3-galactoside, which appears to play a significant role in FNKL's effectiveness. We discovered that quercetin might help by reducing inflammation and oxidative stress while regulating metabolic activity associated with bronchitis.
However, it’s important to note that while quercetin is active within the FNKL complex, our study does not isolate its effects from other ingredients. This means that while its importance is highlighted, we cannot conclusively determine quercetin’s standalone effectiveness in treating bronchitis.
Our findings indicated that FNKL has positive effects on CB, showing a potential benefit in alleviating symptoms. One crucial element we identified was quercetin-3-galactoside, which appears to play a significant role in FNKL's effectiveness. We discovered that quercetin might help by reducing inflammation and oxidative stress while regulating metabolic activity associated with bronchitis.
However, it’s important to note that while quercetin is active within the FNKL complex, our study does not isolate its effects from other ingredients. This means that while its importance is highlighted, we cannot conclusively determine quercetin’s standalone effectiveness in treating bronchitis.
Read More
9
We investigated how quercetin, a powerful antioxidant and anti-inflammatory, affects mice exposed to agents that cause chronic bronchitis and emphysema. After treatment with quercetin, these mice showed noticeable improvement in lung function and reduced inflammation.
Moreover, quercetin decreased harmful substances associated with oxidative stress and the activity of certain destructive proteins linked to lung damage. While promising in this animal model, further research is needed to clarify its potential in human cases of bronchitis and COPD.
Moreover, quercetin decreased harmful substances associated with oxidative stress and the activity of certain destructive proteins linked to lung damage. While promising in this animal model, further research is needed to clarify its potential in human cases of bronchitis and COPD.
Read More
8
We began our exploration by analyzing how the Tonifying Spleen-Lung Recipe (TSLR) can help treat chronic bronchitis, a common respiratory issue often marked by persistent coughing and mucus. By including 137 elderly patients undergoing TSLR and comparing them with a control group of 67, we looked into the effective components and mechanisms behind TSLR's impact.
Our findings indicated that TSLR offers significant therapeutic benefits, likely by targeting inflammation through specific protein pathways. This research contributes to understanding how herbal treatments can support respiratory health.
Our findings indicated that TSLR offers significant therapeutic benefits, likely by targeting inflammation through specific protein pathways. This research contributes to understanding how herbal treatments can support respiratory health.
Read More
8
We examined the effectiveness of a combination of Gleditsiae sinensis fructus Pills and Jujubae fructus in treating chronic bronchitis. Our research involved predicting potential targets using network pharmacology and verifying through various experimental methods, including the examination of inflammatory factors in a model of chronic bronchitis.
The findings showed that this combination significantly alleviates symptoms. We found that key ingredients, particularly quercetin, play an essential role in reducing inflammation and modulating signaling pathways related to the condition.
The findings showed that this combination significantly alleviates symptoms. We found that key ingredients, particularly quercetin, play an essential role in reducing inflammation and modulating signaling pathways related to the condition.
Read More
8
Zhisou Powder aids chronic bronchitis
We explored how Zhisou Powder (ZP), a traditional Chinese medicine, can impact chronic bronchitis (CB). Using advanced techniques, including chemical analysis and experiments on rats, we discovered that ZP significantly helps reduce inflammation associated with CB.
It works by inhibiting specific signaling pathways and effectively addressing metabolic imbalances. Our study noticed clear improvements in treated rats, pointing to ZP's promising potential for treating chronic bronchitis.
Overall, ZP emerges as a viable therapeutic option worth considering for managing the challenges of chronic bronchitis.
It works by inhibiting specific signaling pathways and effectively addressing metabolic imbalances. Our study noticed clear improvements in treated rats, pointing to ZP's promising potential for treating chronic bronchitis.
Overall, ZP emerges as a viable therapeutic option worth considering for managing the challenges of chronic bronchitis.
Read More
User Reviews
USERS' SCORE
Good
Based on 3 Reviews
8.7
- All Reviews
- Positive Reviews
- Negative Reviews
10
Improved breathing
20 people found this helpful
WHERE HAVE YOU BEEN ALL MY LIFE? I've suffered from perennial rhinitis and have struggled with bronchitis due to post-nasal drip. After taking Nasonex, I sought an alternative and found this product. After three days, my breathing is now completely unobstructed. This Quercetin formula seems more potent than others I've tried. It’s a wonderful product!
Read More
7.5
Supports immune system
3 people found this helpful
An important natural antioxidant, quercetin aids the body's immune system. It's my first line of defence against colds, SARS, bronchitis, and similar ailments. It has consistently helped me manage seasonal illnesses more efficiently and effectively.
Read More
9
Prevents bronchitis
2 people found this helpful
Excellent for allergies that progress into bronchitis. My husband's usual struggle has been mitigated by administering several of these pills daily. Grateful to Jarrow for this product.
Read More
Frequently Asked Questions
7.5
Supports immune system
3 people found this helpful
An important natural antioxidant, quercetin aids the body's immune system. It's my first line of defence against colds, SARS, bronchitis, and similar ailments. It has consistently helped me manage seasonal illnesses more efficiently and effectively.
9
Prevents bronchitis
2 people found this helpful
Excellent for allergies that progress into bronchitis. My husband's usual struggle has been mitigated by administering several of these pills daily. Grateful to Jarrow for this product.
8
We began our exploration by analyzing how the Tonifying Spleen-Lung Recipe (TSLR) can help treat chronic bronchitis, a common respiratory issue often marked by persistent coughing and mucus. By including 137 elderly patients undergoing TSLR and comparing them with a control group of 67, we looked into the effective components and mechanisms behind TSLR's impact.
Our findings indicated that TSLR offers significant therapeutic benefits, likely by targeting inflammation through specific protein pathways. This research contributes to understanding how herbal treatments can support respiratory health.
Our findings indicated that TSLR offers significant therapeutic benefits, likely by targeting inflammation through specific protein pathways. This research contributes to understanding how herbal treatments can support respiratory health.
8
We examined the effectiveness of a combination of Gleditsiae sinensis fructus Pills and Jujubae fructus in treating chronic bronchitis. Our research involved predicting potential targets using network pharmacology and verifying through various experimental methods, including the examination of inflammatory factors in a model of chronic bronchitis.
The findings showed that this combination significantly alleviates symptoms. We found that key ingredients, particularly quercetin, play an essential role in reducing inflammation and modulating signaling pathways related to the condition.
The findings showed that this combination significantly alleviates symptoms. We found that key ingredients, particularly quercetin, play an essential role in reducing inflammation and modulating signaling pathways related to the condition.
9
We investigated how quercetin, a powerful antioxidant and anti-inflammatory, affects mice exposed to agents that cause chronic bronchitis and emphysema. After treatment with quercetin, these mice showed noticeable improvement in lung function and reduced inflammation.
Moreover, quercetin decreased harmful substances associated with oxidative stress and the activity of certain destructive proteins linked to lung damage. While promising in this animal model, further research is needed to clarify its potential in human cases of bronchitis and COPD.
Moreover, quercetin decreased harmful substances associated with oxidative stress and the activity of certain destructive proteins linked to lung damage. While promising in this animal model, further research is needed to clarify its potential in human cases of bronchitis and COPD.
7
We investigated the effects of Elaeagnus pungens leaves and its key components, quercetin and kaempferol, on conditions like asthma and bronchitis. Through various pharmacological tests, we found that these compounds significantly reduced inflammation and coughing in mice, hinting at their potential benefits for treating bronchitis.
Our analysis also revealed that the levels of quercetin and other active ingredients differ across species and plant parts. Notably, the leaves of E. pungens proved to be particularly effective compared to other parts, offering hope for future treatments.
Our analysis also revealed that the levels of quercetin and other active ingredients differ across species and plant parts. Notably, the leaves of E. pungens proved to be particularly effective compared to other parts, offering hope for future treatments.
References
- Zhu Z, Feng YD, Zou YL, Xiao YH, Wu JJ, et al. Integrating serum pharmacochemistry, network pharmacology and untargeted metabolomics strategies to reveal the material basis and mechanism of action of Feining keli in the treatment of chronic bronchitis. J Ethnopharmacol. 2024;335:118643. 10.1016/j.jep.2024.118643
- Wu H, Li S, Du X, Zhu K, Li J. Mechanism of Tonifying Spleen-lung Recipe in the Treatment of Chronic Bronchitis Based on Network Pharmacology and Observational Data. Comb Chem High Throughput Screen. 2025;28:478. 10.2174/0113862073274028231213105142
- Wang CC, Kang L, Zuo BL, Peng X, Li HW, et al. Gleditsiae sinensis fructus Pills combined with Jujubae fructus attenuate chronic bronchitis via regulation of AGE-RAGE signaling pathway. J Ethnopharmacol. 2024;319:117191. 10.1016/j.jep.2023.117191
- Dong Y, Liu Y, Tang J, Du J, Zhuang X, et al. Zhisou powder displays therapeutic effect on chronic bronchitis through inhibiting PI3K/Akt/HIF-1α/VEGFA signaling pathway and reprograming metabolic pathway of arachidonic acid. J Ethnopharmacol. 2024;319:117110. 10.1016/j.jep.2023.117110
- Zhu JX, Wen L, Zhong WJ, Xiong L, Liang J, et al. Quercetin, Kaempferol and Isorhamnetin in Elaeagnus pungens Thunb. Leaf: Pharmacological Activities and Quantitative Determination Studies. Chem Biodivers. 2018;15:e1800129. 10.1002/cbdv.201800129
- Ganesan S, Faris AN, Comstock AT, Chattoraj SS, Chattoraj A, et al. Quercetin prevents progression of disease in elastase/LPS-exposed mice by negatively regulating MMP expression. Respir Res. 2010;11:131. 10.1186/1465-9921-11-131
