'
SCIENTIFIC SCORE
Questionable
Based on 4 Researches
5.5
USERS' SCORE
Moderately Good
Based on 94 Reviews
7.1
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
Zinc (as Zinc L-Methionine Sulfate)
15 mg
136%
Copper (as Gluconate)
1 mg
111%

Top Medical Research Studies

7
Zinc treatment reduces nausea risk
Randomized, multicenter, active-controlled open-label study of NPC-25, zinc histidine hydrate, (non-inferiority to NOBELZIN™, zinc acetate dihydrate) for patients with hypozincemia.
Moderate relevance to nausea aspect
We conducted a study to evaluate how effective NPC-25, a new form of zinc, is compared to a well-known treatment, NOBELZIN™, for patients with low zinc levels. Participants in this trial had their zinc levels checked and were grouped to receive either NPC-25 or NOBELZIN™.

For a period of up to 24 weeks, we aimed to maintain their zinc levels within a specific target range while closely monitoring for side effects. One of our main goals was to see if NPC-25 could maintain these target zinc levels similarly to NOBELZIN™.

Our findings revealed that NPC-25 was indeed non-inferior to NOBELZIN™, meaning it worked just as well. Importantly, we also observed that those taking NPC-25 reported fewer digestive issues, like nausea and vomiting. This suggests that while both treatments were effective, NPC-25 might be the gentler option.
Read More
7
Zinc treatment in hypozincemia study
Post-marketing surveillance of zinc acetate dihydrate for hypozincemia in Japan.
Limited insight on nausea specifically
We explored the impact of zinc acetate dihydrate on several symptoms, including nausea, through a comprehensive study that assessed its safety and effectiveness for treating hypozincemia over a 52-week period. From the data collected, we observed an overall adverse reaction rate of 9.4%, with nausea reported in 1.4% of patients.

Despite nausea being a concern, the benefit of zinc acetate dihydrate for other indications was notable, with an efficacy rate of 83%. For patients experiencing symptoms such as pressure ulcers or stomatitis, the effectiveness was strikingly high. However, the specific effect of zinc on nausea is not definitively isolated within the study results, making it hard to gauge its direct and unique benefits.

In essence, while zinc acetate dihydrate shows promise for a variety of symptoms, including nausea, the evidence does not conclusively highlight its effectiveness for this particular issue on its own. Overall, it appears that zinc treatment can contribute positively to addressing several related health problems.
Read More
4
Zinc affects post-op nausea minimally
Comparing the Effect of Zinc-impregnated Pharyngeal Packs with Conventional Methods on the Level of Sore Throat Among Patients Undergoing Septorhinoplasty.
Relevant but limited impact
We explored the effectiveness of zinc-impregnated pharyngeal packs in reducing post-operative nausea and sore throat among patients undergoing septorhinoplasty. In this study, we divided 220 patients into four groups, each receiving different types of pharyngeal packs: normal saline-impregnated vibril, normal saline-impregnated gauze, zinc solution-impregnated vibril, and zinc solution-impregnated gauze.

Our findings revealed that there was no significant difference between the groups regarding the occurrence of sore throat shortly after surgery and at various intervals thereafter. However, we did observe that those using zinc solution-impregnated gauze experienced significantly less severity of nausea two hours post-surgery compared to those using normal saline-impregnated gauze. Ultimately, while zinc did not help with sore throat, it showed promise in alleviating nausea.
Read More

Most Useful Reviews

9.5
No nausea experienced
We regularly use Jarrow Formulas Zinc balance and don’t worry about zinc and copper levels. It has improved skin regulation, and I've encountered no side effects or nausea. If you’re seeking well-dosed zinc, consider Jarrow Formulas products.
Read More
9.5
No nausea found
I've noticed reviews mentioning nausea from zinc. However, this form works well for me without causing nausea; I take it after a hearty breakfast. Coupled with selenium, vitamins B and D, I feel energised and protected. I take zinc in cycles and find it essential for my health.
Read More
1.3
Nausea warning
Caution! This drug is not suitable for everyone. If you experience nausea or discomfort, stop taking it. Do not expect improvements in health if it causes this reaction. I tried it and will not use it again; I recommend considering alternatives like collagen.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 4 Researches
5.5
7
Zinc treatment reduces nausea risk
Randomized, multicenter, active-controlled open-label study of NPC-25, zinc histidine hydrate, (non-inferiority to NOBELZIN™, zinc acetate dihydrate) for patients with hypozincemia.
Moderate relevance to nausea aspect
We conducted a study to evaluate how effective NPC-25, a new form of zinc, is compared to a well-known treatment, NOBELZIN™, for patients with low zinc levels. Participants in this trial had their zinc levels checked and were grouped to receive either NPC-25 or NOBELZIN™.

For a period of up to 24 weeks, we aimed to maintain their zinc levels within a specific target range while closely monitoring for side effects. One of our main goals was to see if NPC-25 could maintain these target zinc levels similarly to NOBELZIN™.

Our findings revealed that NPC-25 was indeed non-inferior to NOBELZIN™, meaning it worked just as well. Importantly, we also observed that those taking NPC-25 reported fewer digestive issues, like nausea and vomiting. This suggests that while both treatments were effective, NPC-25 might be the gentler option.
Read More
7
Zinc treatment in hypozincemia study
Post-marketing surveillance of zinc acetate dihydrate for hypozincemia in Japan.
Limited insight on nausea specifically
We explored the impact of zinc acetate dihydrate on several symptoms, including nausea, through a comprehensive study that assessed its safety and effectiveness for treating hypozincemia over a 52-week period. From the data collected, we observed an overall adverse reaction rate of 9.4%, with nausea reported in 1.4% of patients.

Despite nausea being a concern, the benefit of zinc acetate dihydrate for other indications was notable, with an efficacy rate of 83%. For patients experiencing symptoms such as pressure ulcers or stomatitis, the effectiveness was strikingly high. However, the specific effect of zinc on nausea is not definitively isolated within the study results, making it hard to gauge its direct and unique benefits.

In essence, while zinc acetate dihydrate shows promise for a variety of symptoms, including nausea, the evidence does not conclusively highlight its effectiveness for this particular issue on its own. Overall, it appears that zinc treatment can contribute positively to addressing several related health problems.
Read More
4
Zinc affects post-op nausea minimally
Comparing the Effect of Zinc-impregnated Pharyngeal Packs with Conventional Methods on the Level of Sore Throat Among Patients Undergoing Septorhinoplasty.
Relevant but limited impact
We explored the effectiveness of zinc-impregnated pharyngeal packs in reducing post-operative nausea and sore throat among patients undergoing septorhinoplasty. In this study, we divided 220 patients into four groups, each receiving different types of pharyngeal packs: normal saline-impregnated vibril, normal saline-impregnated gauze, zinc solution-impregnated vibril, and zinc solution-impregnated gauze.

Our findings revealed that there was no significant difference between the groups regarding the occurrence of sore throat shortly after surgery and at various intervals thereafter. However, we did observe that those using zinc solution-impregnated gauze experienced significantly less severity of nausea two hours post-surgery compared to those using normal saline-impregnated gauze. Ultimately, while zinc did not help with sore throat, it showed promise in alleviating nausea.
Read More
4
Zinc's tolerability in diarrhoea treatment
New formulation zinc sulphate acceptability and adherence in children with acute diarrhoea: A prospective, open-label, interventional study in Bangladesh.
Explores nausea related to zinc
We aimed to understand how zinc tablets, often recommended for treating diarrhoea in young children, affect nausea and overall treatment adherence. In this open-label study, we involved children aged 3 to 59 months who visited the outpatient department at Dhaka Hospital.

Our findings revealed that a significant number of children, about 92.7%, tolerated the modified zinc tablets well. However, we also noted that 32.8% of the children experienced vomiting, and 19.5% had regurgitation, while a smaller number, 7.4%, reported nausea. Interestingly, despite these side effects, a remarkable 99.3% of caregivers expressed their willingness to continue using this zinc formulation in the future.

Overall, while our study demonstrated that the modified zinc formulation was generally well-tolerated, we cannot overlook the considerable instances of nausea and vomiting experienced by the children. Balancing these side effects with the willingness of caregivers offers a complex view of zinc's role in diarrhoea management.
Read More

User Reviews

USERS' SCORE
Moderately Good
Based on 94 Reviews
7.1
10
No nausea
Excellent product! It does not cause nausea, and I highly recommend it.
10
No nausea
Under the guidance of an endocrinologist, I took this due to low zinc levels. After two months, my levels normalised. The small blue capsules did not cause any nausea or unpleasant side effects.
9.5
Nausea after meals
I find this excellent zinc effective in supporting my immune system, skin, and hair. I always take it post-dinner to avoid nausea, and during the cold season, my nails have improved, and hair loss ceased. I’m happy with the results and highly recommend it!
9.5
No nausea experienced
We regularly use Jarrow Formulas Zinc balance and don’t worry about zinc and copper levels. It has improved skin regulation, and I've encountered no side effects or nausea. If you’re seeking well-dosed zinc, consider Jarrow Formulas products.
9.5
No nausea found
I've noticed reviews mentioning nausea from zinc. However, this form works well for me without causing nausea; I take it after a hearty breakfast. Coupled with selenium, vitamins B and D, I feel energised and protected. I take zinc in cycles and find it essential for my health.
image