We explored the effects of vitamin C on the common cold and pneumonia by examining a range of studies. Interestingly, research on animals suggests that vitamin C may have protective effects against infections. However, when it comes to preventing colds in the general population, taking more than 1 gram of vitamin C per day didn’t show significant benefits.
But there's a twist! Participants engaged in heavy physical activities saw their cold incidence reduced by half with vitamin C supplementation. Additionally, regular intake of 1 gram or more daily was linked to a 15% decrease in cold severity. While some therapeutic trials showed inconsistent results when vitamin C was taken after cold symptoms appeared, two studies did indicate that larger doses (6-8 grams per day) could effectively shorten the duration of colds compared to lower doses.
Our investigation also looked into pneumonia, but the studies were conducted in unique settings, such as a boarding school and military recruits. This makes it hard to generalize the findings to the wider population. Yet, some trials suggested benefits for pneumonia patients. Finally, the role of vitamin C in treating COVID-19 and sepsis remains unclear, with mixed results.
Given that vitamin C seems to alleviate symptoms and shorten the duration of colds, while being safe and affordable, it might be worth considering a dose of 6-8 grams per day to see if it helps at an individual level.
Read More
9
Vitamin C improves cold tolerance
Application of Exogenous Ascorbic Acid Enhances Cold Tolerance in Tomato Seedlings through Molecular and Physiological Responses.
We explored the effects of ascorbic acid, commonly known as vitamin C, on cold tolerance in tomato seedlings. In our study, we discovered that applying vitamin C significantly boosts the seedlings' ability to handle cold stress.
By enhancing the antioxidant defense system, vitamin C treatment increased the enzyme activity in the seedlings' leaves. Additionally, it raised levels of important compounds such as proline, sugar, and abscisic acid, all of which play crucial roles in plant stress responses.
Our observations showed that vitamin C also protects the photosynthesis system of tomato seedlings. This implies that it helps maintain chlorophyll function, which is critical for the plant's overall health, especially under cold conditions.
Moreover, we found that vitamin C treatments led to increased expression of genes linked to antioxidant enzymes and cold response mechanisms. Overall, our findings suggest that exogenous vitamin C is a beneficial approach to improve cold tolerance in tomatoes and may provide helpful insights for farmers looking to cultivate hardier varieties during colder months.
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Most Useful Reviews
8
H1N1 relief
101 people found this helpful
I used this to help me recover from H1N1 flu. Despite my precautions, I fell ill and was prescribed Tamiflu, which made me feel worse. After weeks of battling symptoms, a friend gave me Emergen-C, and I felt an immediate improvement. Within a few days of daily packets, my symptoms, fatigue, and sinus infection subsided. Other family members also found relief. This product gives your body the tools it needs to recover.
Read More
7.5
User-friendly boost
3 people found this helpful
This is so easy to use and tastes great! It’s the boost needed during cold and flu season, and I highly recommend it. Whether using as a preventive measure while travelling or to shorten a cold, I suggest buying enough for 2 to 3 weeks.
Read More
9
Rapid cold relief
2 people found this helpful
Really, at the first signs of a cold, it swiftly gets you back on your feet. I find that I am drinking it, and by morning, there are no indications that I am unwell.
We explored the effects of ascorbic acid, commonly known as vitamin C, on cold tolerance in tomato seedlings. In our study, we discovered that applying vitamin C significantly boosts the seedlings' ability to handle cold stress.
By enhancing the antioxidant defense system, vitamin C treatment increased the enzyme activity in the seedlings' leaves. Additionally, it raised levels of important compounds such as proline, sugar, and abscisic acid, all of which play crucial roles in plant stress responses.
Our observations showed that vitamin C also protects the photosynthesis system of tomato seedlings. This implies that it helps maintain chlorophyll function, which is critical for the plant's overall health, especially under cold conditions.
Moreover, we found that vitamin C treatments led to increased expression of genes linked to antioxidant enzymes and cold response mechanisms. Overall, our findings suggest that exogenous vitamin C is a beneficial approach to improve cold tolerance in tomatoes and may provide helpful insights for farmers looking to cultivate hardier varieties during colder months.
We explored the effects of vitamin C on the common cold and pneumonia by examining a range of studies. Interestingly, research on animals suggests that vitamin C may have protective effects against infections. However, when it comes to preventing colds in the general population, taking more than 1 gram of vitamin C per day didn’t show significant benefits.
But there's a twist! Participants engaged in heavy physical activities saw their cold incidence reduced by half with vitamin C supplementation. Additionally, regular intake of 1 gram or more daily was linked to a 15% decrease in cold severity. While some therapeutic trials showed inconsistent results when vitamin C was taken after cold symptoms appeared, two studies did indicate that larger doses (6-8 grams per day) could effectively shorten the duration of colds compared to lower doses.
Our investigation also looked into pneumonia, but the studies were conducted in unique settings, such as a boarding school and military recruits. This makes it hard to generalize the findings to the wider population. Yet, some trials suggested benefits for pneumonia patients. Finally, the role of vitamin C in treating COVID-19 and sepsis remains unclear, with mixed results.
Given that vitamin C seems to alleviate symptoms and shorten the duration of colds, while being safe and affordable, it might be worth considering a dose of 6-8 grams per day to see if it helps at an individual level.
Read More
User Reviews
USERS' SCORE
Good
Based on 60 Reviews
8
All Reviews
Positive Reviews
Negative Reviews
8
H1N1 relief
101 people found this helpful
I used this to help me recover from H1N1 flu. Despite my precautions, I fell ill and was prescribed Tamiflu, which made me feel worse. After weeks of battling symptoms, a friend gave me Emergen-C, and I felt an immediate improvement. Within a few days of daily packets, my symptoms, fatigue, and sinus infection subsided. Other family members also found relief. This product gives your body the tools it needs to recover.
Read More
7.5
User-friendly boost
3 people found this helpful
This is so easy to use and tastes great! It’s the boost needed during cold and flu season, and I highly recommend it. Whether using as a preventive measure while travelling or to shorten a cold, I suggest buying enough for 2 to 3 weeks.
Read More
9
Rapid cold relief
2 people found this helpful
Really, at the first signs of a cold, it swiftly gets you back on your feet. I find that I am drinking it, and by morning, there are no indications that I am unwell.
Read More
9
Effective against colds
2 people found this helpful
A must-have! My friend gave me some when I felt a cold coming on, and I was amazed by its effectiveness. It helped fight the cold before it could take over, and it's loaded with B vitamins to prevent lethargy!
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9
Helps when feeling cold
1 people found this helpful
Great. Easy to pour into a water bottle, shake, and drink. I always use Emergen-C when I first feel a cold coming. It helps so much!!
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.
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that plays a critical role in numerous bodily functions. As an essential nutrient, it contributes to the growth and repair of tissues in the body, and it is vital for the production of collagen, an important protein that helps maintain skin, cartilage, tendons, ligaments, and blood vessels. Additionally, Vitamin C acts as a powerful antioxidant, which means it helps combat free radicals—unstable molecules that can cause oxidative stress and contribute to various chronic diseases.
Moreover, Vitamin C enhances iron absorption from plant-based foods, making it a vital component for those following vegetarian or vegan diets. While many people get sufficient Vitamin C from a well-balanced diet that includes fruits and vegetables like oranges, strawberries, kiwi, broccoli, and bell peppers, some individuals might require supplementation. It's generally recommended to stay within the daily intake guidelines, as excessive consumption can lead to gastrointestinal disturbances. Overall, Vitamin C is not just a skincare celebrity—it's a fundamental part of maintaining overall health and well-being.
Vitamin C has long been touted as a potential remedy for the common cold, but the evidence regarding its effectiveness is mixed. Several studies suggest that while vitamin C does not necessarily prevent colds, it may reduce the severity and duration of symptoms if taken at the onset of illness or during periods of high stress. For instance, a review published in the Cochrane Database indicated that regular intake of vitamin C might shorten the duration of colds by about a day, especially in individuals under physical stress, like athletes.
It's important to note that while vitamin C can be beneficial, it should not be viewed as a cure-all. Maintaining a balanced diet with adequate vitamin C through fruits and vegetables, such as citrus fruits, strawberries, and bell peppers, is recommended for overall immune support. If you are considering taking vitamin C supplements specifically to combat cold symptoms, consulting with a healthcare professional is advised to determine the appropriate dosage and to ensure that it aligns with your health needs.
Based on user reviews, many individuals report experiencing relief from cold symptoms quite rapidly after taking this supplement. Users generally state that they feel significantly better by the next day, especially when taken at the first sign of illness. For instance, one review mentions that the user is back on their feet by morning with no indications of being unwell after consumption Read Review. Another review echoes similar sentiments, noting that users often notice improved energy levels and a reduction in symptoms within a short period Read Review.
Overall, while individual experiences may vary, a consensus among reviewers suggests that this supplement can deliver noticeable results within hours to a day of use, especially when taken at the onset of a cold Read Review. Many users recommend it as a go-to for quick relief, indicating its effectiveness in boosting immunity and alleviating early cold symptoms Read Review.
Vitamin C has been a popular supplement for boosting the immune system and alleviating cold symptoms, and recent research sheds light on its effectiveness. A review of multiple studies indicated that while taking more than 1 gram of vitamin C daily does not significantly reduce the incidence of colds in the general population, its benefits emerge for specific groups. Notably, individuals engaged in heavy physical activities experienced a 50% reduction in cold incidence when supplementing with vitamin C. Moreover, regular intake at or above the 1-gram threshold was associated with a 15% decrease in the severity of cold symptoms, suggesting that while it may not prevent colds entirely, it can mitigate their impact on those who are active [1].
Furthermore, higher doses of vitamin C (6-8 grams per day) have demonstrated potential in shortening the duration of colds, although individual responses can vary [1]. Despite mixed outcomes with therapeutic trials, the overall evidence points toward vitamin C being a safe and potentially beneficial supplement to consider when facing a cold, particularly for active individuals or during peak illness seasons. Thus, if you're looking to support your immune response, a carefully monitored vitamin C regimen could indeed be worth exploring for its effects on colds.
Based on user reviews, many individuals report significant improvements in their cold symptoms shortly after consuming the supplement. Several users note that taking it at the first signs of illness provides rapid relief, often leading to feeling completely well by the next day Read Review. Users frequently highlight improvements in energy levels as well, indicating that this supplement not only alleviates cold symptoms but also boosts overall vitality Read Review.
Moreover, multiple reviewers have shared experiences of how the supplement helps prevent their colds from worsening when taken early Read Review. Others have reiterated the consistency in their positive outcomes, noting that the product is effective in supporting the immune system and resulting in faster recovery during the changing seasons Read Review. Despite the variation in individual experiences, a common sentiment among users is that this supplement serves as a reliable tool for managing cold symptoms effectively and expediently.
Users frequently report that combining this supplement with other vitamins or minerals can enhance its effectiveness in managing cold symptoms. For instance, individuals often note that taking it alongside other immune-boosting nutrients like Zinc or various herbal supplements led to improved outcomes, particularly in minimizing cold duration and severity Read Review. Reviewers appreciate the versatility of using this supplement in conjunction with herbal teas or other remedies, as it not only complements the overall immune support but also provides a pleasant taste and effervescence that enhances the drinking experience Read Review.
Additionally, many emphasize that early consumption of the supplement, particularly when paired with other supportive products, tends to yield the best results in staving off cold symptoms. For example, some have found that mixing it into a warm drink or taking it just before bedtime can bolster its effectiveness Read Review. Overall, the consensus among users is that while this supplement alone is effective, combining it with other supplements can lead to even better immune defense, especially during the cold season Read Review.
According to research, the optimal dose of Vitamin C for treating colds appears to hover around the 6-8 grams per day mark, especially if taken at the onset of symptoms. Studies have shown that this higher dosage can effectively shorten the duration of colds compared to lower doses, making it a potentially beneficial strategy for those looking to alleviate their symptoms more quickly [1]. Importantly, regular intake of around 1 gram daily was also associated with a reduction in cold severity and might seem to be a good preventative measure, particularly for those engaging in heavy physical activities, where the incidence of colds was cut in half with Vitamin C supplementation.
Nevertheless, the response to Vitamin C can vary from person to person, and while doses over 1 gram didn't show significant preventive benefits for the general population, the potential for higher doses to make a noteworthy difference during a cold is worth considering [1]. As always, it's a good idea to consult with a healthcare professional before drastically altering your supplement regimen, especially at higher dosages.
9
Rapid cold relief
2 people found this helpful
Really, at the first signs of a cold, it swiftly gets you back on your feet. I find that I am drinking it, and by morning, there are no indications that I am unwell.
9
Quick relief from cold
This product is excellent quality, and I buy it repeatedly. At the onset of a cold, I take a sachet, and by the next day, I feel much better. The taste is very pleasant.
9
Effective for cold
Vitamin C infused tablets are very effective for colds. Their natural ingredients are of high quality and effectively boost our immunity. The taste is a pleasant blend of sour and sweet, and the packaging is exquisite.
9
Tasty and effective
If you drink it as soon as you feel you have a cold, it works immediately. It tastes delightful and is effective, so I always have it readily available.
7.5
Energy boost from colds
1 people found this helpful
I originally bought this for my dad, but I tried it when I felt a cold coming on. It provides a decent energy boost and helps alleviate cold symptoms. It’s also helpful when feeling tired. The taste reminds me of childhood drinks, and the price is reasonable! I would definitely recommend it 😊
10
Preventive measure
Will keep repurchasing! The name is literally for emergencies when I sense an oncoming cold. It helps prevent the cold from worsening. I've experienced this multiple times, and Emergen-C has saved us from getting sick.
9
Effective relief
It helps immensely in autumn and winter when the immune system weakens. I usually drink it at the first signs of a cold; it clears everything as if by hand.
7.5
Immune boost
Lifesaver! I’ve relied on Emergen-C Vitamin C (Tangerine) for years; it’s my go-to when I feel run-down or am catching a cold. The 1,000 mg of Vitamin C, along with B vitamins and electrolytes, provides a quick boost, and the tangerine flavour is refreshing. I don’t use it daily, but it's crucial when I need it—highly recommend for immune support!
8
Accelerates cold recovery
I have always liked the Emergen-C foaming Vitamin C. Due to its high dosage, I do not consume it daily, but it’s very effective when you're about to catch a cold or during one, as it accelerates recovery. The orange taste is pleasantly balanced, resembling sparkling orange water. The single package is easy to carry and remains dry.
9
Immunity stronghold
If you are on the verge of catching a cold, taking it hot proves effective. It boosts immunity, is highly effective, and the packaging is convenient for transport. I’ve been using it for nearly 10 years, confident in its quality and ingredients. It has a slight acidity but is sweet enough to be pleasant. Pouring water results in bubbling, so do it slowly—start with a small amount, then add more gradually.
We explored the effects of vitamin C on the common cold and pneumonia by examining a range of studies. Interestingly, research on animals suggests that vitamin C may have protective effects against infections. However, when it comes to preventing colds in the general population, taking more than 1 gram of vitamin C per day didn’t show significant benefits.
But there's a twist! Participants engaged in heavy physical activities saw their cold incidence reduced by half with vitamin C supplementation. Additionally, regular intake of 1 gram or more daily was linked to a 15% decrease in cold severity. While some therapeutic trials showed inconsistent results when vitamin C was taken after cold symptoms appeared, two studies did indicate that larger doses (6-8 grams per day) could effectively shorten the duration of colds compared to lower doses.
Our investigation also looked into pneumonia, but the studies were conducted in unique settings, such as a boarding school and military recruits. This makes it hard to generalize the findings to the wider population. Yet, some trials suggested benefits for pneumonia patients. Finally, the role of vitamin C in treating COVID-19 and sepsis remains unclear, with mixed results.
Given that vitamin C seems to alleviate symptoms and shorten the duration of colds, while being safe and affordable, it might be worth considering a dose of 6-8 grams per day to see if it helps at an individual level.
References
Hemilä H, Chalker E. Vitamin C for the common cold and pneumonia. Pol Arch Intern Med. 2025;135. doi:10.20452/pamw.16926
Wang X, Ran C, Fu Y, Han L, Yang X, et al. Application of Exogenous Ascorbic Acid Enhances Cold Tolerance in Tomato Seedlings through Molecular and Physiological Responses. Int J Mol Sci. 2024;25. doi:10.3390/ijms251810093