Overview
SCIENTIFIC SCORE
Possibly Effective
Based on 6 Researches
7.3
USERS' SCORE
Good
Based on 26 Reviews
8.3
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
Zinc (as zinc methionine sulfate complex [OptiZinc®])
30 mg
273%
Copper (as copper citrate)
300 mcg
33%
Top Medical Research Studies
9
We explored how zinc lozenges affect the duration of the common cold through a detailed analysis of multiple trials. In particular, we focused on the Mossad (1996) trial involving zinc gluconate lozenges, which revealed an average reduction of cold duration by about 4.0 days. While that sounds promising, our findings through a quantile treatment effect (QTE) analysis tell a more nuanced story.
Interestingly, the QTE analysis showed that for individuals suffering from lengthy colds lasting 15 to 17 days, the zinc lozenges could shorten their illness by as much as 8 days. On the flip side, those with shorter, 2-day colds only experienced a 1-day reduction in sickness. This suggests that while zinc may help, its effectiveness varies significantly depending on the initial duration of the cold, making the overall average effect less informative than we might think.
Our examination extended to three trials that used zinc acetate lozenges, yielding a similar average reduction of around 2.7 days. However, again, those averages concealed varying effects for short and long colds, highlighting the importance of looking beyond simple averages in treatment studies.
Overall, we observed that zinc lozenges can indeed help with cold duration, but the extent of that help is very much dependent on how long a person has been suffering. This approach to understanding treatment effects through QTE analysis could have important implications not just for cold treatment but also for analyzing other health outcomes.
Interestingly, the QTE analysis showed that for individuals suffering from lengthy colds lasting 15 to 17 days, the zinc lozenges could shorten their illness by as much as 8 days. On the flip side, those with shorter, 2-day colds only experienced a 1-day reduction in sickness. This suggests that while zinc may help, its effectiveness varies significantly depending on the initial duration of the cold, making the overall average effect less informative than we might think.
Our examination extended to three trials that used zinc acetate lozenges, yielding a similar average reduction of around 2.7 days. However, again, those averages concealed varying effects for short and long colds, highlighting the importance of looking beyond simple averages in treatment studies.
Overall, we observed that zinc lozenges can indeed help with cold duration, but the extent of that help is very much dependent on how long a person has been suffering. This approach to understanding treatment effects through QTE analysis could have important implications not just for cold treatment but also for analyzing other health outcomes.
Read More
8
We explored the impact of zinc supplementation on common cold symptoms through an extensive review of 20 randomized controlled trials. These studies focused on observing how micronutrients, especially zinc, can help manage the cold in healthy adults.
Our findings suggest that while zinc did not significantly prevent the incidence of cold or reduce symptom severity when compared to other micronutrients, it showed promising results in potentially shortening the duration of a cold. Specifically, we observed that zinc could cut down the duration of cold symptoms by approximately 2.25 days when used alone.
This reduction in duration could have a meaningful impact on daily life and overall productivity for those affected by the common cold. It's noteworthy that while zinc proves beneficial, other vitamins like vitamin C and vitamin D did not show the same effectiveness in this context.
Our findings suggest that while zinc did not significantly prevent the incidence of cold or reduce symptom severity when compared to other micronutrients, it showed promising results in potentially shortening the duration of a cold. Specifically, we observed that zinc could cut down the duration of cold symptoms by approximately 2.25 days when used alone.
This reduction in duration could have a meaningful impact on daily life and overall productivity for those affected by the common cold. It's noteworthy that while zinc proves beneficial, other vitamins like vitamin C and vitamin D did not show the same effectiveness in this context.
Read More
4
We explored how zinc supplementation might impact the prevention and treatment of the common cold. Through a thorough examination of 34 studies involving over 8,500 participants, we aimed to understand whether zinc could effectively reduce the occurrence or duration of colds.
The studies included randomized controlled trials comparing zinc to placebo in both children and adults. Our findings indicate that while zinc may not significantly lower the risk of catching a cold, it could help reduce the duration of an ongoing cold. However, this benefit comes alongside an increase in non-serious side effects, such as an unpleasant taste and stomach issues.
It's important to note that many of these studies showed a wide range of interventions and outcomes, and some reporting was incomplete. Overall, our results suggest that zinc does not hold substantial promise for preventing colds, but it may help shorten the duration of symptoms once a cold strikes.
The studies included randomized controlled trials comparing zinc to placebo in both children and adults. Our findings indicate that while zinc may not significantly lower the risk of catching a cold, it could help reduce the duration of an ongoing cold. However, this benefit comes alongside an increase in non-serious side effects, such as an unpleasant taste and stomach issues.
It's important to note that many of these studies showed a wide range of interventions and outcomes, and some reporting was incomplete. Overall, our results suggest that zinc does not hold substantial promise for preventing colds, but it may help shorten the duration of symptoms once a cold strikes.
Read More
Most Useful Reviews
9
Quick recovery
2 people found this helpful
An excellent supplement for quickly restoring deficiencies or aiding in illness. With a cold, I follow a course of 5 to 7 days, which helps expedite recovery. It has been tested on my family with great success! Highly recommended!
Read More
9
Health improvement
1 people found this helpful
I've recently started taking OptiZinc and have already noticed positive changes. It contains zinc in a form that promotes better absorption. Compared to other supplements I've tried, OptiZinc has shown the best results. My skin condition has improved, with fewer rashes, and I've experienced increased energy and better overall well-being. With cold and flu season approaching, I've taken additional doses to support my immune system and believe it has helped me avoid illnesses.
Read More
9
Prevents complications
1 people found this helpful
At the first signs of a cold, I take it immediately to avoid complications. I appreciate the nice trial price for one tablet containing 30 mg of zinc and 300 mcg of copper.
Read More
Medical Researches
SCIENTIFIC SCORE
Possibly Effective
Based on 6 Researches
7.3
- All Researches
9
We explored the effectiveness of zinc in combination with herbal polyphenols against respiratory RNA viruses, including the common cold. In this study, the researchers combined zinc picolinate with various flavonoids to see if it could reduce viral replication and load without harming healthy cells.
The results were quite promising, showing a significant reduction of 50-95% in the genome replication levels of viruses like the human coronavirus OC43, influenza A virus, and human metapneumovirus. This suggests that zinc, when paired with appropriate compounds, may play a beneficial role in treating infections that lead to the common cold.
However, it's important to note that while the study shows a notable decrease in viral activity, it did not specifically isolate the effects of zinc alone. Thus, we cannot definitively state that zinc by itself is effective against the common cold without considering the contributions of the other substances involved.
Overall, this research opens the door for developing a potential treatment that is not toxic and sourced from natural ingredients, which could be effective against various RNA viruses with the hope of remaining effective even amidst mutating strains.
The results were quite promising, showing a significant reduction of 50-95% in the genome replication levels of viruses like the human coronavirus OC43, influenza A virus, and human metapneumovirus. This suggests that zinc, when paired with appropriate compounds, may play a beneficial role in treating infections that lead to the common cold.
However, it's important to note that while the study shows a notable decrease in viral activity, it did not specifically isolate the effects of zinc alone. Thus, we cannot definitively state that zinc by itself is effective against the common cold without considering the contributions of the other substances involved.
Overall, this research opens the door for developing a potential treatment that is not toxic and sourced from natural ingredients, which could be effective against various RNA viruses with the hope of remaining effective even amidst mutating strains.
Read More
9
We explored how zinc lozenges affect the duration of the common cold through a detailed analysis of multiple trials. In particular, we focused on the Mossad (1996) trial involving zinc gluconate lozenges, which revealed an average reduction of cold duration by about 4.0 days. While that sounds promising, our findings through a quantile treatment effect (QTE) analysis tell a more nuanced story.
Interestingly, the QTE analysis showed that for individuals suffering from lengthy colds lasting 15 to 17 days, the zinc lozenges could shorten their illness by as much as 8 days. On the flip side, those with shorter, 2-day colds only experienced a 1-day reduction in sickness. This suggests that while zinc may help, its effectiveness varies significantly depending on the initial duration of the cold, making the overall average effect less informative than we might think.
Our examination extended to three trials that used zinc acetate lozenges, yielding a similar average reduction of around 2.7 days. However, again, those averages concealed varying effects for short and long colds, highlighting the importance of looking beyond simple averages in treatment studies.
Overall, we observed that zinc lozenges can indeed help with cold duration, but the extent of that help is very much dependent on how long a person has been suffering. This approach to understanding treatment effects through QTE analysis could have important implications not just for cold treatment but also for analyzing other health outcomes.
Interestingly, the QTE analysis showed that for individuals suffering from lengthy colds lasting 15 to 17 days, the zinc lozenges could shorten their illness by as much as 8 days. On the flip side, those with shorter, 2-day colds only experienced a 1-day reduction in sickness. This suggests that while zinc may help, its effectiveness varies significantly depending on the initial duration of the cold, making the overall average effect less informative than we might think.
Our examination extended to three trials that used zinc acetate lozenges, yielding a similar average reduction of around 2.7 days. However, again, those averages concealed varying effects for short and long colds, highlighting the importance of looking beyond simple averages in treatment studies.
Overall, we observed that zinc lozenges can indeed help with cold duration, but the extent of that help is very much dependent on how long a person has been suffering. This approach to understanding treatment effects through QTE analysis could have important implications not just for cold treatment but also for analyzing other health outcomes.
Read More
8
We explored the impact of zinc supplementation on common cold symptoms through an extensive review of 20 randomized controlled trials. These studies focused on observing how micronutrients, especially zinc, can help manage the cold in healthy adults.
Our findings suggest that while zinc did not significantly prevent the incidence of cold or reduce symptom severity when compared to other micronutrients, it showed promising results in potentially shortening the duration of a cold. Specifically, we observed that zinc could cut down the duration of cold symptoms by approximately 2.25 days when used alone.
This reduction in duration could have a meaningful impact on daily life and overall productivity for those affected by the common cold. It's noteworthy that while zinc proves beneficial, other vitamins like vitamin C and vitamin D did not show the same effectiveness in this context.
Our findings suggest that while zinc did not significantly prevent the incidence of cold or reduce symptom severity when compared to other micronutrients, it showed promising results in potentially shortening the duration of a cold. Specifically, we observed that zinc could cut down the duration of cold symptoms by approximately 2.25 days when used alone.
This reduction in duration could have a meaningful impact on daily life and overall productivity for those affected by the common cold. It's noteworthy that while zinc proves beneficial, other vitamins like vitamin C and vitamin D did not show the same effectiveness in this context.
Read More
7
We explored the potential effects of zinc on the common cold based on a collection of research studies that investigated its role in treating acute respiratory infections, including COVID-19.
Importantly, we found that while zinc showed some promise in improving conditions related to pneumonia in children under five, there wasn't enough clear evidence linking zinc directly to a reduction in the incidence or duration of the common cold.
Typically, vitamins C, D, and E were examined alongside zinc, with findings indicating that these vitamins did not lower the common cold's occurrence. However, we noted that vitamin C did help shorten its duration and lessen its severity for some individuals, particularly those under physical or environmental stress.
Ultimately, while zinc has been shown to support health in various contexts, its specific impact on the common cold remains uncertain, suggesting that additional research is needed to draw more definitive conclusions.
Importantly, we found that while zinc showed some promise in improving conditions related to pneumonia in children under five, there wasn't enough clear evidence linking zinc directly to a reduction in the incidence or duration of the common cold.
Typically, vitamins C, D, and E were examined alongside zinc, with findings indicating that these vitamins did not lower the common cold's occurrence. However, we noted that vitamin C did help shorten its duration and lessen its severity for some individuals, particularly those under physical or environmental stress.
Ultimately, while zinc has been shown to support health in various contexts, its specific impact on the common cold remains uncertain, suggesting that additional research is needed to draw more definitive conclusions.
Read More
7
Zinc's mixed effectiveness for colds
We observed that zinc has been highlighted as a potential remedy for alleviating symptoms of the common cold. The information indicates that zinc may play a significant role in treating cold symptoms, especially in adults. While conclusive and thorough evidence specifically isolating zinc's effects isn't entirely clear, it is often included among over-the-counter treatments that have shown effectiveness.
Zinc is typically administered to support quicker recovery from cold symptoms, which also include nasal congestion and sore throat. It’s essential that we keep in mind that not all evidence is of high quality, but some studies and anecdotal reports suggest that incorporating zinc may lead to some improvement in symptom management.
Furthermore, it's important to emphasize that when advising patients, we should be mindful of the limitations and mix of other treatments. Although zinc appears promising, it's crucial to inform individuals that effective treatment strategies extend beyond just zinc alone. While the potential benefits of zinc are appealing, more reliable research is necessary to fully endorse its effectiveness in cold treatment.
Zinc is typically administered to support quicker recovery from cold symptoms, which also include nasal congestion and sore throat. It’s essential that we keep in mind that not all evidence is of high quality, but some studies and anecdotal reports suggest that incorporating zinc may lead to some improvement in symptom management.
Furthermore, it's important to emphasize that when advising patients, we should be mindful of the limitations and mix of other treatments. Although zinc appears promising, it's crucial to inform individuals that effective treatment strategies extend beyond just zinc alone. While the potential benefits of zinc are appealing, more reliable research is necessary to fully endorse its effectiveness in cold treatment.
Read More
User Reviews
USERS' SCORE
Good
Based on 26 Reviews
8.3
- All Reviews
- Positive Reviews
- Negative Reviews
9
Quick recovery
2 people found this helpful
An excellent supplement for quickly restoring deficiencies or aiding in illness. With a cold, I follow a course of 5 to 7 days, which helps expedite recovery. It has been tested on my family with great success! Highly recommended!
Read More
9
Health improvement
1 people found this helpful
I've recently started taking OptiZinc and have already noticed positive changes. It contains zinc in a form that promotes better absorption. Compared to other supplements I've tried, OptiZinc has shown the best results. My skin condition has improved, with fewer rashes, and I've experienced increased energy and better overall well-being. With cold and flu season approaching, I've taken additional doses to support my immune system and believe it has helped me avoid illnesses.
Read More
9
Prevents complications
1 people found this helpful
At the first signs of a cold, I take it immediately to avoid complications. I appreciate the nice trial price for one tablet containing 30 mg of zinc and 300 mcg of copper.
Read More
7.5
Helps treat cold
1 people found this helpful
I took it several months ago and it was effective in treating a cold, including the return of my sense of smell after COVID.
Read More
9
Effective relief
This formula, combined with vitamin C, really helped me when I had a cold. The only downside is that the pills are quite oddly shaped, making them harder to swallow than expected due to their lack of coating.
Read More
Frequently Asked Questions
9
Quick recovery
2 people found this helpful
An excellent supplement for quickly restoring deficiencies or aiding in illness. With a cold, I follow a course of 5 to 7 days, which helps expedite recovery. It has been tested on my family with great success! Highly recommended!
9
Prevents complications
1 people found this helpful
At the first signs of a cold, I take it immediately to avoid complications. I appreciate the nice trial price for one tablet containing 30 mg of zinc and 300 mcg of copper.
9
Prevention for colds
1 people found this helpful
OptiZinc is excellent. It's vital during a pandemic as it boosts immunity. One tablet is sufficient for prevention, but at the first signs of a cold, 2-3 tablets help not only to avoid falling ill but also to recover quickly. It's beneficial for skin health too!
9
Health improvement
1 people found this helpful
I've recently started taking OptiZinc and have already noticed positive changes. It contains zinc in a form that promotes better absorption. Compared to other supplements I've tried, OptiZinc has shown the best results. My skin condition has improved, with fewer rashes, and I've experienced increased energy and better overall well-being. With cold and flu season approaching, I've taken additional doses to support my immune system and believe it has helped me avoid illnesses.
7.5
Helps treat cold
1 people found this helpful
I took it several months ago and it was effective in treating a cold, including the return of my sense of smell after COVID.
9
Effective relief
This formula, combined with vitamin C, really helped me when I had a cold. The only downside is that the pills are quite oddly shaped, making them harder to swallow than expected due to their lack of coating.
7.5
Support immune system
11 people found this helpful
Great complex! We need zinc daily, as it stimulates the activity of around 300 enzymes responsible for biochemical reactions. The product comes in a plastic jar with light blue tablets. The recommended dosage is 1 tablet, which contains 30 mg of zinc and 300 mcg of copper. My husband takes zinc regularly, but I only remember it when I feel a cold. If taken promptly with vitamin C, one can often avoid illness. During autumn and winter, I try to take zinc courses to support my immune system and enhance my skin, hair, and nails. This complex is beneficial as it includes copper, which zinc can displace. Additionally, it contains tyrosine, essential for pigmentation in hair and skin, which is vital for those against greying.
7.5
Supports immunity
1 people found this helpful
I purchased this for myself and my husband. We take one tablet each morning along with Omega-3 and vitamin D. Zinc is good for balancing our body's zinc-copper levels, and it’s an excellent remedy during the cold season!
8
We explored the impact of zinc supplementation on common cold symptoms through an extensive review of 20 randomized controlled trials. These studies focused on observing how micronutrients, especially zinc, can help manage the cold in healthy adults.
Our findings suggest that while zinc did not significantly prevent the incidence of cold or reduce symptom severity when compared to other micronutrients, it showed promising results in potentially shortening the duration of a cold. Specifically, we observed that zinc could cut down the duration of cold symptoms by approximately 2.25 days when used alone.
This reduction in duration could have a meaningful impact on daily life and overall productivity for those affected by the common cold. It's noteworthy that while zinc proves beneficial, other vitamins like vitamin C and vitamin D did not show the same effectiveness in this context.
Our findings suggest that while zinc did not significantly prevent the incidence of cold or reduce symptom severity when compared to other micronutrients, it showed promising results in potentially shortening the duration of a cold. Specifically, we observed that zinc could cut down the duration of cold symptoms by approximately 2.25 days when used alone.
This reduction in duration could have a meaningful impact on daily life and overall productivity for those affected by the common cold. It's noteworthy that while zinc proves beneficial, other vitamins like vitamin C and vitamin D did not show the same effectiveness in this context.
9
We explored how zinc lozenges affect the duration of the common cold through a detailed analysis of multiple trials. In particular, we focused on the Mossad (1996) trial involving zinc gluconate lozenges, which revealed an average reduction of cold duration by about 4.0 days. While that sounds promising, our findings through a quantile treatment effect (QTE) analysis tell a more nuanced story.
Interestingly, the QTE analysis showed that for individuals suffering from lengthy colds lasting 15 to 17 days, the zinc lozenges could shorten their illness by as much as 8 days. On the flip side, those with shorter, 2-day colds only experienced a 1-day reduction in sickness. This suggests that while zinc may help, its effectiveness varies significantly depending on the initial duration of the cold, making the overall average effect less informative than we might think.
Our examination extended to three trials that used zinc acetate lozenges, yielding a similar average reduction of around 2.7 days. However, again, those averages concealed varying effects for short and long colds, highlighting the importance of looking beyond simple averages in treatment studies.
Overall, we observed that zinc lozenges can indeed help with cold duration, but the extent of that help is very much dependent on how long a person has been suffering. This approach to understanding treatment effects through QTE analysis could have important implications not just for cold treatment but also for analyzing other health outcomes.
Interestingly, the QTE analysis showed that for individuals suffering from lengthy colds lasting 15 to 17 days, the zinc lozenges could shorten their illness by as much as 8 days. On the flip side, those with shorter, 2-day colds only experienced a 1-day reduction in sickness. This suggests that while zinc may help, its effectiveness varies significantly depending on the initial duration of the cold, making the overall average effect less informative than we might think.
Our examination extended to three trials that used zinc acetate lozenges, yielding a similar average reduction of around 2.7 days. However, again, those averages concealed varying effects for short and long colds, highlighting the importance of looking beyond simple averages in treatment studies.
Overall, we observed that zinc lozenges can indeed help with cold duration, but the extent of that help is very much dependent on how long a person has been suffering. This approach to understanding treatment effects through QTE analysis could have important implications not just for cold treatment but also for analyzing other health outcomes.
9
We explored the effectiveness of zinc in combination with herbal polyphenols against respiratory RNA viruses, including the common cold. In this study, the researchers combined zinc picolinate with various flavonoids to see if it could reduce viral replication and load without harming healthy cells.
The results were quite promising, showing a significant reduction of 50-95% in the genome replication levels of viruses like the human coronavirus OC43, influenza A virus, and human metapneumovirus. This suggests that zinc, when paired with appropriate compounds, may play a beneficial role in treating infections that lead to the common cold.
However, it's important to note that while the study shows a notable decrease in viral activity, it did not specifically isolate the effects of zinc alone. Thus, we cannot definitively state that zinc by itself is effective against the common cold without considering the contributions of the other substances involved.
Overall, this research opens the door for developing a potential treatment that is not toxic and sourced from natural ingredients, which could be effective against various RNA viruses with the hope of remaining effective even amidst mutating strains.
The results were quite promising, showing a significant reduction of 50-95% in the genome replication levels of viruses like the human coronavirus OC43, influenza A virus, and human metapneumovirus. This suggests that zinc, when paired with appropriate compounds, may play a beneficial role in treating infections that lead to the common cold.
However, it's important to note that while the study shows a notable decrease in viral activity, it did not specifically isolate the effects of zinc alone. Thus, we cannot definitively state that zinc by itself is effective against the common cold without considering the contributions of the other substances involved.
Overall, this research opens the door for developing a potential treatment that is not toxic and sourced from natural ingredients, which could be effective against various RNA viruses with the hope of remaining effective even amidst mutating strains.
7
We explored the potential effects of zinc on the common cold based on a collection of research studies that investigated its role in treating acute respiratory infections, including COVID-19.
Importantly, we found that while zinc showed some promise in improving conditions related to pneumonia in children under five, there wasn't enough clear evidence linking zinc directly to a reduction in the incidence or duration of the common cold.
Typically, vitamins C, D, and E were examined alongside zinc, with findings indicating that these vitamins did not lower the common cold's occurrence. However, we noted that vitamin C did help shorten its duration and lessen its severity for some individuals, particularly those under physical or environmental stress.
Ultimately, while zinc has been shown to support health in various contexts, its specific impact on the common cold remains uncertain, suggesting that additional research is needed to draw more definitive conclusions.
Importantly, we found that while zinc showed some promise in improving conditions related to pneumonia in children under five, there wasn't enough clear evidence linking zinc directly to a reduction in the incidence or duration of the common cold.
Typically, vitamins C, D, and E were examined alongside zinc, with findings indicating that these vitamins did not lower the common cold's occurrence. However, we noted that vitamin C did help shorten its duration and lessen its severity for some individuals, particularly those under physical or environmental stress.
Ultimately, while zinc has been shown to support health in various contexts, its specific impact on the common cold remains uncertain, suggesting that additional research is needed to draw more definitive conclusions.
7
Zinc's mixed effectiveness for colds
We observed that zinc has been highlighted as a potential remedy for alleviating symptoms of the common cold. The information indicates that zinc may play a significant role in treating cold symptoms, especially in adults. While conclusive and thorough evidence specifically isolating zinc's effects isn't entirely clear, it is often included among over-the-counter treatments that have shown effectiveness.
Zinc is typically administered to support quicker recovery from cold symptoms, which also include nasal congestion and sore throat. It’s essential that we keep in mind that not all evidence is of high quality, but some studies and anecdotal reports suggest that incorporating zinc may lead to some improvement in symptom management.
Furthermore, it's important to emphasize that when advising patients, we should be mindful of the limitations and mix of other treatments. Although zinc appears promising, it's crucial to inform individuals that effective treatment strategies extend beyond just zinc alone. While the potential benefits of zinc are appealing, more reliable research is necessary to fully endorse its effectiveness in cold treatment.
Zinc is typically administered to support quicker recovery from cold symptoms, which also include nasal congestion and sore throat. It’s essential that we keep in mind that not all evidence is of high quality, but some studies and anecdotal reports suggest that incorporating zinc may lead to some improvement in symptom management.
Furthermore, it's important to emphasize that when advising patients, we should be mindful of the limitations and mix of other treatments. Although zinc appears promising, it's crucial to inform individuals that effective treatment strategies extend beyond just zinc alone. While the potential benefits of zinc are appealing, more reliable research is necessary to fully endorse its effectiveness in cold treatment.
References
- Nault D, Machingo TA, Shipper AG, Antiporta DA, Hamel C, et al. Zinc for prevention and treatment of the common cold. Cochrane Database Syst Rev. 2024;5:CD014914. doi:10.1002/14651858.CD014914.pub2
- Kreiser T, Zaguri D, Sachdeva S, Zamostiano R, Mograbi J, et al. Inhibition of Respiratory RNA Viruses by a Composition of Ionophoric Polyphenols with Metal Ions. Pharmaceuticals (Basel). 2022;15. doi:10.3390/ph15030377
- Hemilä H, Chalker E, Tukiainen J. Quantile Treatment Effect of Zinc Lozenges on Common Cold Duration: A Novel Approach to Analyze the Effect of Treatment on Illness Duration. Front Pharmacol. 2022;13:817522. doi:10.3389/fphar.2022.817522
- Murni IK, Prawirohartono EP, Triasih R. Potential Role of Vitamins and Zinc on Acute Respiratory Infections Including Covid-19. Glob Pediatr Health. 2021;8:2333794X211021739. doi:10.1177/2333794X211021739
- Wang MX, Win SS, Pang J. Zinc Supplementation Reduces Common Cold Duration among Healthy Adults: A Systematic Review of Randomized Controlled Trials with Micronutrients Supplementation. Am J Trop Med Hyg. 2020;103:86. doi:10.4269/ajtmh.19-0718
- DeGeorge KC, Ring DJ, Dalrymple SN. Treatment of the Common Cold. Am Fam Physician. 2019;100:281.
