We explored how zinc might help in treating and preventing the common cold. The study focused on zinc's effects, isolating it from other treatments to understand its true impact on cold symptoms. By doing this, the researchers aimed to clarify whether zinc could genuinely shorten the duration of a cold or alleviate its symptoms.
The findings were intriguing but showed that zinc might not yield significant benefits for everyone. While some individuals reported a slight reduction in cold symptoms, the evidence did not strongly support zinc as an effective treatment overall.
This means that, for those seeking relief from a nasty cold, zinc alone might not be the go-to solution we hoped it would be. It’s essential to consider this information when deciding on a cold treatment plan and to approach zinc with realistic expectations.
Read More
9
Zinc enhances rice cold resistance
Effects of different cold-resistant agents and application methods on yield and cold-resistance of machine-transplanted early rice.
We explored the impact of zinc-amino acids chelate on cold stress resistance in machine-transplanted early rice. Our investigation included other cold-resistant agents like uniconazole and abscisic acid, but we found zinc to be particularly effective. When applied during the regreening stage, zinc notably enhanced rice growth by promoting tillering and increasing the leaf area, which led to better yields.
We noted that zinc-amino acids chelate improved antioxidant enzyme activities, which are crucial for helping rice withstand cold temperatures. The yield of rice treated with zinc was approximately 9.22% higher than with uniconazole and 7.14% higher than with abscisic acid.
Additionally, we observed that using 750 g/ha of zinc-amino acids chelate during the transplanting and regreening stages yielded the best results. The timing of the application played a critical role, as spraying during these specific phases maximized both yield and cold resistance.
Overall, zinc treatments stand out as a promising option for improving cold stress resilience in early rice, making it a key consideration for farmers dealing with cold climate conditions.
Read More
8
Zinc mouthwash reduces cold symptoms
Efficacy of regular gargling with a cetylpyridinium chloride plus zinc containing mouthwash can reduce upper respiratory symptoms.
We explored the impact of regular gargling with an antimicrobial mouthwash that contains both cetylpyridinium chloride and zinc on upper respiratory symptoms. A total of 150 participants were split into two groups; one group just brushed their teeth, while the other group brushed and gargled with the mouthwash twice a day over three months.
Our findings revealed that those using the mouthwash experienced a 21.5% reduction in the frequency and an 11% decrease in the severity of respiratory symptoms. This strongly suggests that incorporating zinc, alongside cetylpyridinium chloride, can provide benefits for those suffering from cold-related symptoms.
However, it’s important to note that this study’s design involved multiple components, and we can’t isolate zinc’s effectiveness from the impact of the other ingredients. Still, the results encourage us to view mouthwash with these ingredients as a helpful addition to our daily hygiene routines, especially during cold and flu season.
Ultimately, this research indicates that gargling with a mouthwash containing zinc and cetylpyridinium chloride can indeed help alleviate some unpleasant cold symptoms, but we should be mindful of the combination's effects when interpreting these outcomes.
Read More
Most Useful Reviews
8
Effective for early relief
102 people found this helpful
At the first signs of a cold, this helps immensely; I usually recover in 4-5 days when combined with vitamin C and D3.
Read More
7.5
Eases cold symptoms
90 people found this helpful
Excellent! We trust NOWFOOD for quality, science-backed supplements. I find zinc effective in alleviating cold symptoms when taken at the onset and in shortening the duration of colds during illness. This is a staple in my medicine cabinet!
Read More
9
Stops colds effectively
9 people found this helpful
This zinc form effectively alleviates headaches and at the first signs of a cold, I take a hefty dose (3 capsules a day for 3-4 days) followed by one for a couple of days. Colds clear up, and the large jar is quite economical. Just take it, without hesitation. Thank you for the wonderful product!
We explored the impact of zinc-amino acids chelate on cold stress resistance in machine-transplanted early rice. Our investigation included other cold-resistant agents like uniconazole and abscisic acid, but we found zinc to be particularly effective. When applied during the regreening stage, zinc notably enhanced rice growth by promoting tillering and increasing the leaf area, which led to better yields.
We noted that zinc-amino acids chelate improved antioxidant enzyme activities, which are crucial for helping rice withstand cold temperatures. The yield of rice treated with zinc was approximately 9.22% higher than with uniconazole and 7.14% higher than with abscisic acid.
Additionally, we observed that using 750 g/ha of zinc-amino acids chelate during the transplanting and regreening stages yielded the best results. The timing of the application played a critical role, as spraying during these specific phases maximized both yield and cold resistance.
Overall, zinc treatments stand out as a promising option for improving cold stress resilience in early rice, making it a key consideration for farmers dealing with cold climate conditions.
Read More
8
Zinc mouthwash reduces cold symptoms
Efficacy of regular gargling with a cetylpyridinium chloride plus zinc containing mouthwash can reduce upper respiratory symptoms.
We explored the impact of regular gargling with an antimicrobial mouthwash that contains both cetylpyridinium chloride and zinc on upper respiratory symptoms. A total of 150 participants were split into two groups; one group just brushed their teeth, while the other group brushed and gargled with the mouthwash twice a day over three months.
Our findings revealed that those using the mouthwash experienced a 21.5% reduction in the frequency and an 11% decrease in the severity of respiratory symptoms. This strongly suggests that incorporating zinc, alongside cetylpyridinium chloride, can provide benefits for those suffering from cold-related symptoms.
However, it’s important to note that this study’s design involved multiple components, and we can’t isolate zinc’s effectiveness from the impact of the other ingredients. Still, the results encourage us to view mouthwash with these ingredients as a helpful addition to our daily hygiene routines, especially during cold and flu season.
Ultimately, this research indicates that gargling with a mouthwash containing zinc and cetylpyridinium chloride can indeed help alleviate some unpleasant cold symptoms, but we should be mindful of the combination's effects when interpreting these outcomes.
Read More
8
Zinc’s effects on colds
Zinc for prevention and treatment of the common cold: Summary of a Cochrane review.
We explored how zinc might help in treating and preventing the common cold. The study focused on zinc's effects, isolating it from other treatments to understand its true impact on cold symptoms. By doing this, the researchers aimed to clarify whether zinc could genuinely shorten the duration of a cold or alleviate its symptoms.
The findings were intriguing but showed that zinc might not yield significant benefits for everyone. While some individuals reported a slight reduction in cold symptoms, the evidence did not strongly support zinc as an effective treatment overall.
This means that, for those seeking relief from a nasty cold, zinc alone might not be the go-to solution we hoped it would be. It’s essential to consider this information when deciding on a cold treatment plan and to approach zinc with realistic expectations.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 570 Reviews
7.9
All Reviews
Positive Reviews
Negative Reviews
8
Effective for early relief
102 people found this helpful
At the first signs of a cold, this helps immensely; I usually recover in 4-5 days when combined with vitamin C and D3.
Read More
7.5
Eases cold symptoms
90 people found this helpful
Excellent! We trust NOWFOOD for quality, science-backed supplements. I find zinc effective in alleviating cold symptoms when taken at the onset and in shortening the duration of colds during illness. This is a staple in my medicine cabinet!
Read More
9
Stops colds effectively
9 people found this helpful
This zinc form effectively alleviates headaches and at the first signs of a cold, I take a hefty dose (3 capsules a day for 3-4 days) followed by one for a couple of days. Colds clear up, and the large jar is quite economical. Just take it, without hesitation. Thank you for the wonderful product!
Read More
9
Strengthens immune response
7 people found this helpful
Zinc in glycinate form is well absorbed when combined with vitamin C. My skin condition and overall wellbeing have improved during colder weather, as it bolsters immunity against colds. After experiencing hypothermia, a cold begun; however, it quickly resolved without complications, thanks to the combination of Zinc and vitamin C. The capsules are small, tasteless, and odourless, making them easy to swallow.
Read More
9
Restores vitality
5 people found this helpful
This glycine zinc supplement is superb for eliminating deficiencies. It’s highly absorbable and has greatly improved my physical condition since I've started using it. It enhances my immune system, making me less likely to catch a cold, and helps in recovering from fatigue. My energy levels have surged. It also improves skin condition, promoting firmness, and is safe with minimal side effects. It’s suitable for anyone wanting to increase zinc intake and enhance vitality.
Cold is a term that refers to a state of low temperature, often associated with a perceptibly chilly environment or the sensation of being cool to the touch. Scientifically, cold is relative to the presence and movement of heat, which is a measure of energy within matter. In everyday terms, we experience cold through weather changes, such as during winter months, and it can also be described in the context of specific temperature ranges – for example, temperatures below 32 degrees Fahrenheit (0 degrees Celsius) generally signify freezing conditions, which can impact outdoor activities, personal comfort, and various ecological systems.
Moreover, the sensation of cold is not solely dependent on temperature; factors like humidity and wind chill can enhance the feeling of coldness. When discussing cold in terms of human health, prolonged exposure to cold conditions can lead to hypothermia or frostbite if body heat is not effectively maintained. Hence, it's crucial to dress appropriately and take necessary precautions during colder months to prevent adverse effects. Understanding the concept of cold can help individuals better prepare for seasonal changes and ensure their comfort and safety.
Zinc is a versatile metal known for its various applications in industry and health. It is a bluish-white metallic element represented by the symbol Zn and atomic number 30 on the periodic table. Zinc is primarily used for galvanizing steel to prevent rusting, in the manufacturing of alloys, and as a component in batteries. Additionally, zinc plays a crucial role in biological processes, making it an essential trace element in the human diet. It is involved in immune function, protein synthesis, wound healing, and DNA synthesis, highlighting its importance in maintaining overall health and well-being.
The potential benefits of zinc in treating the common cold have been the subject of several studies, and the results indicate that zinc may indeed play a role in reducing the severity and duration of cold symptoms. Zinc is known to support immune function, which makes it a popular supplement during cold season. Some research suggests that taking zinc lozenges or syrup within 24 hours of the onset of cold symptoms can shorten the duration of the illness and help alleviate symptoms like sore throat and nasal congestion. However, it's important to note that these effects can vary from person to person, and not all studies are in agreement.
While zinc lozenges can be effective, it's crucial to avoid excessive intake, as high doses of zinc can lead to side effects such as nausea or a bad taste in the mouth. Always consult with a healthcare provider before starting any new supplement regimen, particularly if you have underlying health conditions or are taking other medications. Overall, incorporating zinc into your routine may offer some benefits during cold season, but it should not replace other preventive measures, such as proper hygiene and vaccination against respiratory illnesses.
Based on user reviews, many individuals report experiencing positive results from this zinc supplement when taken at the first signs of a cold. Users generally claim that symptoms improve significantly within a few days, with some noting that they recover in as little as one day when they start taking it promptly, especially when combined with Vitamin C. One user mentioned, "I am thrilled! My cold never disappeared so quickly. Recovery occurred in just 1 day if I began taking it at the first sign of symptoms" Read Review. Others also indicated a typical recovery timeframe of around 4-5 days when using it in conjunction with other vitamins Read Review.
The general consensus among users hints that taking the supplement as soon as symptoms begin enhances its effectiveness, with many praising its role in alleviating symptoms and expediting recovery from colds. For instance, one user stated, "At the first signs of a cold, it definitely helps—two pieces taken immediately with vitamin C" Read Review. Therefore, if you are considering this product for cold symptoms, initiating your regimen promptly may yield the best results.
When it comes to the effectiveness of zinc in alleviating cold symptoms, the research is somewhat mixed. A study investigating a mouthwash containing zinc found that regular gargling resulted in a 21.5% reduction in the frequency and an 11% decrease in the severity of upper respiratory symptoms among its users [1]. However, this study did not isolate the effects of zinc from other ingredients in the mouthwash, leaving some uncertainty regarding zinc's solo impact. While this suggests that zinc may be beneficial in certain formulations, this does not necessarily translate to a straightforward endorsement of zinc as a cough or cold remedy.
Further research on zinc's role in treating the common cold found that while some individuals reported slight improvements in symptoms, the overall evidence did not robustly support zinc as an effective treatment for everyone [2]. Therefore, if you’re considering zinc as a cure or preventive measure for the common cold, it’s important to approach it with realistic expectations, especially since it may not be a one-size-fits-all solution.
Users report a variety of improvements in their symptoms when taking zinc supplements, especially when combined with vitamin C and D. Many individuals have noted a significant reduction in the duration and severity of colds, with some claiming complete recovery in as little as one day if taken at the first sign of symptoms Read Review. Others mention that consistent use of zinc has led to fewer colds overall, with one user stating, "I no longer catch colds," attributing this change to the introduction of zinc into their regimen Read Review.
Anecdotal evidence indicates that users appreciate the quick action of zinc, often reporting alleviated symptoms within hours or days of starting the supplement Read Review. Furthermore, many have noted an improvement in overall wellness and skin condition, mentioning enhanced energy levels and clearer complexions as beneficial side effects Read Review. However, it's important to remember that individual results can vary, and while many users find zinc effective, others may have different experiences with their supplementation.
Users report a notable synergy when combining this zinc supplement with other vitamins for managing cold symptoms. Many reviewers have emphasized the effectiveness of pairing zinc with vitamin C and, in some cases, vitamin D. For instance, one user noted, "I usually recover in 4-5 days when combined with vitamin C and D3," highlighting a reduction in cold duration when these supplements are taken together Read Review. Another user expressed similar sentiments, stating that taking zinc at the first sign of a cold, along with vitamin C, leads to a quick resolution of symptoms within hours Read Review.
Furthermore, several users illustrated that maintaining a regimen of both zinc and vitamin C provides preventive benefits, with one noting a significant decrease in the frequency of colds since incorporating zinc into their routine Read Review. Several reviews collectively suggest that not only does the combination expedite recovery from cold symptoms, but it also enhances overall immunity and wellness, making this combination a highly recommended approach during cold season Read Review.
Based on user reviews, it appears that many individuals find zinc to be most effective when taken at the first sign of a cold. Several users reported taking a higher dosage for a brief period during the onset of symptoms. For instance, one reviewer mentioned taking 3 capsules a day for 3-4 days, followed by a lower dose for a couple of days thereafter, leading to quicker recovery Read Review. Similarly, another user found that beginning zinc supplementation at the first indication of a cold resulted in blowing symptoms away in just one day Read Review.
In terms of combining zinc with other supplements, users frequently recommended pairing it with vitamin C and D for enhanced efficacy. For example, one user emphasized that taking zinc along with vitamin C and maintaining this regimen even after symptoms started helped minimize their cold duration significantly Read Review. The consensus seems to indicate that starting with a robust dose right at the onset, ideally alongside vitamin C, is the go-to strategy for many looking to effectively combat cold symptoms and improve recovery time.
10
Rapid recovery
1 people found this helpful
I am thrilled! My cold never disappeared so quickly. Recovery occurred in just 1 day if I began taking it at the first sign of symptoms. The capsules are easy to take. I combined them with vitamin C and will definitely order more. I also use it preventatively during the off-season.
8
Effective for early relief
102 people found this helpful
At the first signs of a cold, this helps immensely; I usually recover in 4-5 days when combined with vitamin C and D3.
9
Effective for colds
1 people found this helpful
Wonderful zinc. At the first sign of a cold, it definitely helps—two pieces taken immediately with vitamin C. The price-to-quality ratio is excellent.
10
Indispensable supplement
I no longer catch colds. After reading a blog post, I started using zinc lozenges, which worked well when I was feeling unwell. To boost my zinc intake, I began using this supplement, which has become indispensable as I no longer catch colds.
10
Cold symptoms vanished
2 people found this helpful
I like it!!! This product is absolutely amazing!!! With the first signs of a cold, I take Zinc and Vitamin C (1000 mg), and any signs of colds disappear within hours. I particularly appreciate this one for its pumpkin seed oil content. It’s truly exceptional!
9
Immune system support
1 people found this helpful
Great zinc supplements have been essential for my immune system. Since using them regularly, I've seen a reduction in the frequency and duration of colds. Zinc has also greatly improved my skin health, aiding in clearer complexions and quicker healing. While a balanced diet is key, zinc has significantly fortified my immune defences and enhanced my overall well-being.
7.5
Reduces cold duration
1 people found this helpful
We trust NOW for quality, science-based supplements. Zinc has been beneficial in alleviating cold symptoms when taken at the onset and in shortening the duration of a cold if continued throughout the illness. It’s a product I wouldn't want to be without in my medicine cabinet!
9
Stops colds effectively
9 people found this helpful
This zinc form effectively alleviates headaches and at the first signs of a cold, I take a hefty dose (3 capsules a day for 3-4 days) followed by one for a couple of days. Colds clear up, and the large jar is quite economical. Just take it, without hesitation. Thank you for the wonderful product!
8
Zinc mouthwash reduces cold symptoms
Efficacy of regular gargling with a cetylpyridinium chloride plus zinc containing mouthwash can reduce upper respiratory symptoms.
We explored the impact of regular gargling with an antimicrobial mouthwash that contains both cetylpyridinium chloride and zinc on upper respiratory symptoms. A total of 150 participants were split into two groups; one group just brushed their teeth, while the other group brushed and gargled with the mouthwash twice a day over three months.
Our findings revealed that those using the mouthwash experienced a 21.5% reduction in the frequency and an 11% decrease in the severity of respiratory symptoms. This strongly suggests that incorporating zinc, alongside cetylpyridinium chloride, can provide benefits for those suffering from cold-related symptoms.
However, it’s important to note that this study’s design involved multiple components, and we can’t isolate zinc’s effectiveness from the impact of the other ingredients. Still, the results encourage us to view mouthwash with these ingredients as a helpful addition to our daily hygiene routines, especially during cold and flu season.
Ultimately, this research indicates that gargling with a mouthwash containing zinc and cetylpyridinium chloride can indeed help alleviate some unpleasant cold symptoms, but we should be mindful of the combination's effects when interpreting these outcomes.
8
Zinc’s effects on colds
Zinc for prevention and treatment of the common cold: Summary of a Cochrane review.
We explored how zinc might help in treating and preventing the common cold. The study focused on zinc's effects, isolating it from other treatments to understand its true impact on cold symptoms. By doing this, the researchers aimed to clarify whether zinc could genuinely shorten the duration of a cold or alleviate its symptoms.
The findings were intriguing but showed that zinc might not yield significant benefits for everyone. While some individuals reported a slight reduction in cold symptoms, the evidence did not strongly support zinc as an effective treatment overall.
This means that, for those seeking relief from a nasty cold, zinc alone might not be the go-to solution we hoped it would be. It’s essential to consider this information when deciding on a cold treatment plan and to approach zinc with realistic expectations.
References
Muniz FWMG, Casarin M, Pola NM, Rösing CK, Silveira TMD, et al. Efficacy of regular gargling with a cetylpyridinium chloride plus zinc containing mouthwash can reduce upper respiratory symptoms. PLoS One. 2025;20:e0316807. 10.1371/journal.pone.0316807
Wieland LS. Zinc for prevention and treatment of the common cold: Summary of a Cochrane review. Explore (NY). 2025;21:103111. 10.1016/j.explore.2025.103111
Yuan S, Qin S, Shi Q, Chen P, Tu N, et al. Effects of different cold-resistant agents and application methods on yield and cold-resistance of machine-transplanted early rice. Front Plant Sci. 2024;15:1422374. 10.3389/fpls.2024.1422374