Overview

SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
USERS' SCORE
Questionable
Based on 9 Reviews
5.8
Supplement Facts
Serving Size:   2 Veg Capsules
Amount Per Serving
%DV
Quercetin
800 mg
**
Bromelain (2,400 GDU/g)
165 mg
**

Top Medical Research Studies

We explored how quercetin, a natural antioxidant, affects nausea induced by substances like ipecac and copper sulfate in a controlled study involving chickens. Both quercetin and another antioxidant called N-acetylcysteine (NAC) were tested to see whether they could alleviate emesis (vomiting) and also protect the brain from oxidative damage.

Our findings revealed that quercetin and NAC did, in fact, significantly reduce vomiting compared to the control group. We observed notable improvements in markers of oxidative damage in the brain, such as reduced lipid peroxidation and lower levels of reactive oxygen species and protein carbonyls after administering quercetin and NAC. This suggests that these substances enhance mitochondrial function and boost antioxidant levels within the body.

Interestingly, when we combined quercetin with NAC, the effects were even more pronounced, implying that utilizing both together may offer greater protection against nausea and brain oxidative stress. Overall, this study indicates that quercetin could play a valuable role in managing nausea through both peripheral effects (like reducing vomiting) and central effects (like protecting the brain).
Read More

Most Useful Reviews

0
Nausea prevents use
1 people found this helpful
Below average. I can’t take it because of nausea. Even reducing the dosage didn’t help.
Read More
2
Nausea from usage
3 people found this helpful
I bought this to support my immune system but stopped after learning that Bromelain should only be taken for 8 to 10 days due to possible stomach upset, nausea, diarrhoea, and rapid heartbeat. I experienced most of these discomforts over the couple of months I took it daily. It’s unfortunate there were no warnings on the bottle or website, as I suffered due to a lack of information provided about this product. I regret purchasing it altogether!
Read More
2
Nausea and sweating
2 people found this helpful
I’ve struggled with the dosage. Following the instructions, I took 2 capsules before meals, along with zinc citrate, but experienced terrible sweating, nausea, and bloating afterwards. I even stopped taking them because I thought there might be a conflict with succinic acid. When I resumed taking quercetin and zinc citrate, symptoms returned. Interestingly, when I used these from a reputable English brand, there were no adverse effects. I’ll try to reduce the dose of both.
Read More

Medical Researches

SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9
  • All Researches
We explored how quercetin, a natural antioxidant, affects nausea induced by substances like ipecac and copper sulfate in a controlled study involving chickens. Both quercetin and another antioxidant called N-acetylcysteine (NAC) were tested to see whether they could alleviate emesis (vomiting) and also protect the brain from oxidative damage.

Our findings revealed that quercetin and NAC did, in fact, significantly reduce vomiting compared to the control group. We observed notable improvements in markers of oxidative damage in the brain, such as reduced lipid peroxidation and lower levels of reactive oxygen species and protein carbonyls after administering quercetin and NAC. This suggests that these substances enhance mitochondrial function and boost antioxidant levels within the body.

Interestingly, when we combined quercetin with NAC, the effects were even more pronounced, implying that utilizing both together may offer greater protection against nausea and brain oxidative stress. Overall, this study indicates that quercetin could play a valuable role in managing nausea through both peripheral effects (like reducing vomiting) and central effects (like protecting the brain).
Read More

User Reviews

USERS' SCORE
Questionable
Based on 9 Reviews
5.8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
0
Nausea prevents use
1 people found this helpful
Below average. I can’t take it because of nausea. Even reducing the dosage didn’t help.
Read More
2
Nausea from usage
3 people found this helpful
I bought this to support my immune system but stopped after learning that Bromelain should only be taken for 8 to 10 days due to possible stomach upset, nausea, diarrhoea, and rapid heartbeat. I experienced most of these discomforts over the couple of months I took it daily. It’s unfortunate there were no warnings on the bottle or website, as I suffered due to a lack of information provided about this product. I regret purchasing it altogether!
Read More
2
Nausea and sweating
2 people found this helpful
I’ve struggled with the dosage. Following the instructions, I took 2 capsules before meals, along with zinc citrate, but experienced terrible sweating, nausea, and bloating afterwards. I even stopped taking them because I thought there might be a conflict with succinic acid. When I resumed taking quercetin and zinc citrate, symptoms returned. Interestingly, when I used these from a reputable English brand, there were no adverse effects. I’ll try to reduce the dose of both.
Read More
0
Nausea discomforting
1 people found this helpful
For some reason, this product does not agree with me. As soon as I take it, I am left lying down, struggling with nausea. Even the smell makes me feel sick. Interestingly, my husband can take it without feeling ill.
Read More
4
Nausea from dosage
The specified dose is excessive! The manufacturer's recommendation of 2 + 2 capsules daily is too high. Most sources suggest a maximum of 1000 mg per day, but the 2 + 2 scheme amounts to 1600 mg. After three weeks of use, I started experiencing side effects such as nausea, abdominal pain, and headaches. Reducing the dose to 2 capsules resolved the issues.
Read More

Frequently Asked Questions

0
Nausea discomforting
1 people found this helpful
For some reason, this product does not agree with me. As soon as I take it, I am left lying down, struggling with nausea. Even the smell makes me feel sick. Interestingly, my husband can take it without feeling ill.
2
Nausea for all
This causes nausea on an empty stomach. I thought it might only apply to me, but my daughter had the same experience, and a friend who took it also exhibited the same symptoms.
7.5
Nausea subsided
1 people found this helpful
I’m very pleased with the fast delivery, quality packaging, and the natural composition of the product. Though the capsules are slightly large, I have no issues swallowing them as they have a pleasant citrus taste. Taking one capsule daily with meals led to noticeable benefits, including a reduction in frequent headaches, nausea, and fatigue. I’ve noticed more energy and a better mood since starting, and I recommend it for those interested in fitness, sports, or dieting.
7.5
Nausea alleviated
1 people found this helpful
I appreciate the good composition and fast delivery. The quality and natural ingredients are great; the capsule size is manageable despite being a bit large and the citrus taste is enjoyable. After taking one capsule daily with meals, I’ve begun to notice significant benefits, including a decrease in headaches, nausea, and fatigue. My energy levels have improved, and my mood is much better. It's suitable for those interested in fitness and diet.
4
Nausea from dosage
The specified dose is excessive! The manufacturer's recommendation of 2 + 2 capsules daily is too high. Most sources suggest a maximum of 1000 mg per day, but the 2 + 2 scheme amounts to 1600 mg. After three weeks of use, I started experiencing side effects such as nausea, abdominal pain, and headaches. Reducing the dose to 2 capsules resolved the issues.
2
Nausea and sweating
2 people found this helpful
I’ve struggled with the dosage. Following the instructions, I took 2 capsules before meals, along with zinc citrate, but experienced terrible sweating, nausea, and bloating afterwards. I even stopped taking them because I thought there might be a conflict with succinic acid. When I resumed taking quercetin and zinc citrate, symptoms returned. Interestingly, when I used these from a reputable English brand, there were no adverse effects. I’ll try to reduce the dose of both.
0
Nausea prevents use
1 people found this helpful
Below average. I can’t take it because of nausea. Even reducing the dosage didn’t help.
We explored how quercetin, a natural antioxidant, affects nausea induced by substances like ipecac and copper sulfate in a controlled study involving chickens. Both quercetin and another antioxidant called N-acetylcysteine (NAC) were tested to see whether they could alleviate emesis (vomiting) and also protect the brain from oxidative damage.

Our findings revealed that quercetin and NAC did, in fact, significantly reduce vomiting compared to the control group. We observed notable improvements in markers of oxidative damage in the brain, such as reduced lipid peroxidation and lower levels of reactive oxygen species and protein carbonyls after administering quercetin and NAC. This suggests that these substances enhance mitochondrial function and boost antioxidant levels within the body.

Interestingly, when we combined quercetin with NAC, the effects were even more pronounced, implying that utilizing both together may offer greater protection against nausea and brain oxidative stress. Overall, this study indicates that quercetin could play a valuable role in managing nausea through both peripheral effects (like reducing vomiting) and central effects (like protecting the brain).

References

  1. Abolfazli S, Foroumand S, Mohammadi E, Ahangar N, Kheirandish A, et al. Brain mitochondrial damage attenuation by quercetin and N-acetyl cysteine: peripheral and central antiemetic effects. Toxicol Res (Camb). 2024;13:tfae139. doi:10.1093/toxres/tfae139
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