Intake of 25-Hydroxyvitamin D3 Reduces Duration and Severity of Upper Respiratory Tract Infection: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study.
We explored how 25-hydroxyvitamin D3 (25OHD), a form of vitamin D, influences upper respiratory tract infections (URTIs), commonly known as colds. In a carefully designed clinical study, we followed 428 participants aged 45 to 74 over a 16-week period. They were randomly assigned to receive either 10 μg of 25OHD daily or a placebo, all while maintaining a double-blind setup to ensure accurate results.
Our findings revealed that those who took 25OHD had reduced duration and severity of their cold symptoms. Participants reported improvements in their overall quality of life during the bouts of URTI. By tracking the health of the participants through surveys designed to measure cold symptoms, we gathered valuable data that indicates vitamin D3 could play a helpful role in managing colds.
This suggests that incorporating vitamin D3 into our diets may be beneficial when we catch a cold, potentially leading to a quicker recovery. It’s a promising avenue for anyone looking to ease the discomfort and duration of these frustrating infections.
Read More
8
Vitamin D enhances cold resilience
Influence of Vitamin D Supplementation by Simulated Sunlight or Oral D3 on Respiratory Infection during Military Training.
We delved into the effects of vitamin D on cold symptoms among military recruits during their training. In two comprehensive studies, we observed over 1,600 military recruits to see how their vitamin D levels impacted their likelihood of upper respiratory tract infections (URTIs) throughout the seasons.
In the first study, only 21% of recruits were found to have sufficient vitamin D levels during winter. Notably, those with adequate vitamin D were 40% less likely to experience URTIs compared to those who were deficient. Each URTI typically caused three missed training days, indicating a significant impact on their training schedules.
Following this, we conducted a randomized controlled trial with 250 men simulating sunlight exposure or providing oral vitamin D3 supplementation. Our goal was to see how both methods affected overall vitamin D levels and, subsequently, URTI symptoms. Remarkably, both strategies successfully brought participants to sufficient vitamin D levels. Compared to those who received a placebo, those getting vitamin D3 experienced a 15% reduction in the severity of cold symptoms and a 36% decrease in the number of days with URTI.
Interestingly, we found that both methods—simulated sunlight and oral supplementation—were equally effective, and neither had a significant impact on specific immune response markers.
Read More
8
Vitamin D3 aids cold symptom relief
Intake of 25-Hydroxyvitamin D May Reduce the Severity of Upper Respiratory Tract Infection: Post hoc Analysis of a Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study.
We explored the potential benefits of vitamin D3, specifically 25-hydroxyvitamin D, on cold symptoms among people with insufficient or deficient levels of this essential nutrient. The study was well-designed, involving a randomized, double-blind, placebo-controlled method where participants received either 10 μg of vitamin D3 or a placebo over 16 weeks.
During the study, we used a tool called the Wisconsin Upper Respiratory Symptom Survey-21, which helped us collect data on physical signs and symptoms of upper respiratory tract infections (URTI). We observed that participants who took vitamin D3 experienced significantly lower scores for symptoms like runny nose, sneezing, and head congestion compared to those on a placebo. Additionally, their overall quality of life, except for the ability to breathe easily, improved when they were taking vitamin D3.
However, it's important to note that the number of cold occurrences and the use of other medications, like antibiotics and pain relievers, showed no significant difference between the two groups. Overall, our findings suggest that adequate intake of vitamin D3 can indeed help reduce certain cold symptoms and enhance quality of life when a cold strikes.
Read More
Most Useful Reviews
10
Prevents colds
1 people found this helpful
Upon learning that Vitamin D3 was beneficial during the pandemic, I promptly provided it to my children. They find the taste delicious, and I take it daily myself. Thankfully, I haven’t caught a cold!
Read More
9
Increased energy noted
Previously, my child was often tired, moody, and fell ill more than I liked. After checking his vitamin D levels, we started him on vitamin D3 as per the doctor's advice. Within weeks, my son felt more energetic, caught colds less often, and his mood improved. I ensure he receives it regularly, particularly during autumn and winter. It genuinely works!
Read More
9
Effective cold treatment
I haven't had a cold since I began taking this! I feel it is quite effective and plan to continue using it.
We delved into the effects of vitamin D on cold symptoms among military recruits during their training. In two comprehensive studies, we observed over 1,600 military recruits to see how their vitamin D levels impacted their likelihood of upper respiratory tract infections (URTIs) throughout the seasons.
In the first study, only 21% of recruits were found to have sufficient vitamin D levels during winter. Notably, those with adequate vitamin D were 40% less likely to experience URTIs compared to those who were deficient. Each URTI typically caused three missed training days, indicating a significant impact on their training schedules.
Following this, we conducted a randomized controlled trial with 250 men simulating sunlight exposure or providing oral vitamin D3 supplementation. Our goal was to see how both methods affected overall vitamin D levels and, subsequently, URTI symptoms. Remarkably, both strategies successfully brought participants to sufficient vitamin D levels. Compared to those who received a placebo, those getting vitamin D3 experienced a 15% reduction in the severity of cold symptoms and a 36% decrease in the number of days with URTI.
Interestingly, we found that both methods—simulated sunlight and oral supplementation—were equally effective, and neither had a significant impact on specific immune response markers.
Read More
8
Vitamin D3 aids cold symptom relief
Intake of 25-Hydroxyvitamin D May Reduce the Severity of Upper Respiratory Tract Infection: Post hoc Analysis of a Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study.
We explored the potential benefits of vitamin D3, specifically 25-hydroxyvitamin D, on cold symptoms among people with insufficient or deficient levels of this essential nutrient. The study was well-designed, involving a randomized, double-blind, placebo-controlled method where participants received either 10 μg of vitamin D3 or a placebo over 16 weeks.
During the study, we used a tool called the Wisconsin Upper Respiratory Symptom Survey-21, which helped us collect data on physical signs and symptoms of upper respiratory tract infections (URTI). We observed that participants who took vitamin D3 experienced significantly lower scores for symptoms like runny nose, sneezing, and head congestion compared to those on a placebo. Additionally, their overall quality of life, except for the ability to breathe easily, improved when they were taking vitamin D3.
However, it's important to note that the number of cold occurrences and the use of other medications, like antibiotics and pain relievers, showed no significant difference between the two groups. Overall, our findings suggest that adequate intake of vitamin D3 can indeed help reduce certain cold symptoms and enhance quality of life when a cold strikes.
Read More
8
Vitamin D3 aids cold recovery
Intake of 25-Hydroxyvitamin D3 Reduces Duration and Severity of Upper Respiratory Tract Infection: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study.
We explored how 25-hydroxyvitamin D3 (25OHD), a form of vitamin D, influences upper respiratory tract infections (URTIs), commonly known as colds. In a carefully designed clinical study, we followed 428 participants aged 45 to 74 over a 16-week period. They were randomly assigned to receive either 10 μg of 25OHD daily or a placebo, all while maintaining a double-blind setup to ensure accurate results.
Our findings revealed that those who took 25OHD had reduced duration and severity of their cold symptoms. Participants reported improvements in their overall quality of life during the bouts of URTI. By tracking the health of the participants through surveys designed to measure cold symptoms, we gathered valuable data that indicates vitamin D3 could play a helpful role in managing colds.
This suggests that incorporating vitamin D3 into our diets may be beneficial when we catch a cold, potentially leading to a quicker recovery. It’s a promising avenue for anyone looking to ease the discomfort and duration of these frustrating infections.
Read More
User Reviews
USERS' SCORE
Good
Based on 22 Reviews
8
All Reviews
Positive Reviews
Negative Reviews
10
Prevents colds
1 people found this helpful
Upon learning that Vitamin D3 was beneficial during the pandemic, I promptly provided it to my children. They find the taste delicious, and I take it daily myself. Thankfully, I haven’t caught a cold!
Read More
9
Increased energy noted
Previously, my child was often tired, moody, and fell ill more than I liked. After checking his vitamin D levels, we started him on vitamin D3 as per the doctor's advice. Within weeks, my son felt more energetic, caught colds less often, and his mood improved. I ensure he receives it regularly, particularly during autumn and winter. It genuinely works!
Read More
9
Effective cold treatment
I haven't had a cold since I began taking this! I feel it is quite effective and plan to continue using it.
Read More
9
Helps recover faster
These jellies come in various fruit flavours, and my child loves them. They’re pleasant to taste and not sour. We take one in the morning and one in the evening, especially since September has been particularly cold this year. At the first signs of a cold, we drink two daily, which helps in recovery.
Read More
9
Useful in winter
These vitamins are excellent! They taste delicious and are particularly beneficial during the cold season.
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.
Children's Vitamin D is a dietary supplement specifically formulated to support the health and development of children. Vitamin D is crucial for maintaining healthy bones and teeth, and it plays an essential role in the functioning of the immune system. Young children, especially those who may have limited sun exposure or dietary intake of vitamin D, are often recommended to take these supplements to ensure they receive adequate levels for optimal growth and development.
Typically, children's vitamin D supplements come in various forms such as chewable tablets, gummies, or liquid drops, making them more palatable for younger audiences. The most common form is vitamin D3 (cholecalciferol), which is considered more effective in raising vitamin D levels in the body than D2 (ergocalciferol). It's essential for parents to consult with a pediatrician before starting any supplement to determine the right dosage based on individual health needs and lifestyle factors. Proper intake of vitamin D not only supports bone health but also has been linked to other health benefits, such as improved mood and immune response, making it a valuable addition to children's wellness routines.
While Vitamin D is essential for overall health, including immune function, the direct link between children's Vitamin D supplementation and the prevention or treatment of colds is not definitively established. Some studies suggest that adequate levels of Vitamin D can help bolster the immune system, potentially reducing the risk of respiratory infections. However, it's important to note that while Vitamin D may offer some immune support, it is not a cure or treatment for colds themselves.
For parents considering Vitamin D supplements for their children, it’s advisable to consult a pediatrician to assess individual needs and ensure appropriate dosages. Vitamin D supplements can be beneficial, especially in regions with limited sunlight exposure, but they should be part of a broader strategy that includes a balanced diet and good hygiene practices to fend off colds and other illnesses.
Based on user reviews, many individuals reported positive effects from taking Vitamin D3 for cold prevention and immunity support within a few weeks. For instance, one user mentioned that after starting their child on Vitamin D3, they noticed increased energy and a reduction in colds within weeks (Read Review). Another user shared their experience of not catching a cold since beginning supplementation, indicating immediate effectiveness (Read Review).
These testimonials suggest that consistent use, particularly during the colder months, can lead to noticeable improvements in health and immunity quite quickly. Additionally, several reviews highlighted the importance of taking the supplement regularly to maintain its benefits, especially during the autumn and winter seasons (Read Review, Read Review). Overall, users have found that within just a few weeks of use, the effects on cold frequency and severity can be significantly beneficial.
Scientific research does suggest that vitamin D3 supplementation may provide benefits for individuals experiencing cold symptoms. A study involving military recruits found that those with sufficient vitamin D levels were 40% less likely to suffer from upper respiratory tract infections (URTIs), and those taking vitamin D3 showed a 15% reduction in the severity of cold symptoms compared to a placebo group [1]. Another analysis confirmed that participants receiving vitamin D3 experienced significantly lower symptom scores, particularly in areas like runny nose and head congestion, indicating potential for improved quality of life during colds [2].
Additionally, a clinical study with middle-aged participants reported that those taking vitamin D3 exhibited both reduced duration and severity of their cold symptoms over a 16-week period, reinforcing the notion that adequate vitamin D levels could assist in managing URTIs effectively [3]. While vitamin D3 may not reduce the number of colds experienced, it appears to alleviate symptoms when they do occur, making it a viable supplement for those looking to mitigate discomfort associated with colds.
Based on user reviews, many individuals have reported significant improvements in various symptoms while taking Vitamin D3, particularly during cold and flu seasons. Parents have noted that their children feel more energetic and have fewer instances of colds after starting supplementation. For example, one parent observed their child experiencing reduced fatigue and moodiness, along with a notable decrease in cold occurrences shortly after beginning Vitamin D3 (Read Review). Another user highlighted their personal experience of not catching a cold since incorporating the vitamin into their routine (Read Review).
Additionally, families noted that children not only enjoy the taste but also consistently consume the vitamins, contributing to their overall well-being during colder months (Read Review, Read Review). This anecdotal evidence suggests that regular use of Vitamin D3 can lead to enhanced immunity and less frequent illness, though individual results may vary depending on factors such as diet, lifestyle, and pre-existing health conditions.
Based on user reviews, many individuals have reported combining Vitamin D3 with other supplements to effectively manage cold symptoms. A parent highlighted the practice of increasing the dosage to two gummies daily during cold onset, stating it helps in recovery (Read Review) and another noted that in conjunction with phosphorus and calcium, Vitamin D3 contributes to preventing colds and skin diseases (Read Review). This suggests users are proactively adjusting dosages and supplement combinations to enhance immune support, particularly during colder months when colds are more prevalent.
Additionally, several reviewers mentioned their consistent regimen of Vitamin D3 as part of broader dietary habits that include various vitamins, reinforcing its perceived effectiveness. One reviewer noted that even during particularly chilly weather, they would give two vitamins daily to their children at the first signs of a cold (Read Review) while others consistently employed the supplement to bolster overall immunity throughout the season (Read Review, Read Review, Read Review). This collective feedback indicates a significant trend among users to optimize their supplementation strategies to combat colds effectively.
The optimal dose of vitamin D for children to mitigate the effects of colds appears to be around 10 μg (micrograms) daily. Research indicates that administering this amount can lead to meaningful benefits in terms of reduced cold symptoms and improved quality of life during upper respiratory tract infections (URTIs) [2]. For instance, a well-controlled study demonstrated that children receiving this daily dosage exhibited significantly lower scores on symptomatic measures such as runny nose and sneezing, compared to those on a placebo [2].
Additionally, larger studies have shown that the intake of this dosage correlates with lower severity of cold symptoms and a shortened duration of illness [3]. Specifically, participants taking 10 μg of 25-hydroxyvitamin D3 daily reported improvements in various aspects of their cold experience, suggesting that this dosage may contribute positively to managing colds [3]. Always consult with a healthcare professional before starting any new supplement regimen for your child.
9
Increased energy noted
Previously, my child was often tired, moody, and fell ill more than I liked. After checking his vitamin D levels, we started him on vitamin D3 as per the doctor's advice. Within weeks, my son felt more energetic, caught colds less often, and his mood improved. I ensure he receives it regularly, particularly during autumn and winter. It genuinely works!
9
Effective cold treatment
I haven't had a cold since I began taking this! I feel it is quite effective and plan to continue using it.
7.5
Improves immunity
My child enjoys taking this every autumn. She takes it willingly thanks to vitamin D3, which improves her immunity and helps her get through the autumn colds more easily. Eating two marmalades every morning is a treat for her, and the small package lasts about a month or two.
7.5
Daily essential
The children love these vitamins! I order them regularly. One a day is perfect, but during the cold season, I increase it to two a day.
7.5
Supports immunity
I give my child vitamin D3 and have already noticed positive changes. There are fewer signs of fatigue, the mood is more stable, and my child looks more energetic and active. Vitamin supports immunity, which is especially important in the cold season. I am glad I chose this complex for my child's health.
9
Helps recover faster
These jellies come in various fruit flavours, and my child loves them. They’re pleasant to taste and not sour. We take one in the morning and one in the evening, especially since September has been particularly cold this year. At the first signs of a cold, we drink two daily, which helps in recovery.
7.5
Cold prevention
I find Vitamin D3 to be a great supplement; it aids in calcium and phosphorus absorption and regulates their levels in the blood and bones. Combined with phosphorus, calcium, and vitamin A, it prevents colds and skin diseases. A delightful supplement that I highly recommend!
7.5
Convenient and effective
I am very pleased to have found these vitamins. The dosage is 1000 N per jelly, very convenient for my child. It lasts for two months, has a pleasant taste, and needs to be taken once daily. During a cold, I occasionally give two capsules, and it is an effective, beneficial supplement for children, enhancing their well-being.
9
Maintains immunity well
Excellent! A very tasty vitamin with a good dosage for older children. During the cold season, I consistently give it to my son to maintain his immunity.
6
Supports immunity well
Vitamins for children have a delightful taste and quality - just what’s needed to support immunity during the cold season.
8
Vitamin D enhances cold resilience
Influence of Vitamin D Supplementation by Simulated Sunlight or Oral D3 on Respiratory Infection during Military Training.
We delved into the effects of vitamin D on cold symptoms among military recruits during their training. In two comprehensive studies, we observed over 1,600 military recruits to see how their vitamin D levels impacted their likelihood of upper respiratory tract infections (URTIs) throughout the seasons.
In the first study, only 21% of recruits were found to have sufficient vitamin D levels during winter. Notably, those with adequate vitamin D were 40% less likely to experience URTIs compared to those who were deficient. Each URTI typically caused three missed training days, indicating a significant impact on their training schedules.
Following this, we conducted a randomized controlled trial with 250 men simulating sunlight exposure or providing oral vitamin D3 supplementation. Our goal was to see how both methods affected overall vitamin D levels and, subsequently, URTI symptoms. Remarkably, both strategies successfully brought participants to sufficient vitamin D levels. Compared to those who received a placebo, those getting vitamin D3 experienced a 15% reduction in the severity of cold symptoms and a 36% decrease in the number of days with URTI.
Interestingly, we found that both methods—simulated sunlight and oral supplementation—were equally effective, and neither had a significant impact on specific immune response markers.
8
Vitamin D3 aids cold symptom relief
Intake of 25-Hydroxyvitamin D May Reduce the Severity of Upper Respiratory Tract Infection: Post hoc Analysis of a Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study.
We explored the potential benefits of vitamin D3, specifically 25-hydroxyvitamin D, on cold symptoms among people with insufficient or deficient levels of this essential nutrient. The study was well-designed, involving a randomized, double-blind, placebo-controlled method where participants received either 10 μg of vitamin D3 or a placebo over 16 weeks.
During the study, we used a tool called the Wisconsin Upper Respiratory Symptom Survey-21, which helped us collect data on physical signs and symptoms of upper respiratory tract infections (URTI). We observed that participants who took vitamin D3 experienced significantly lower scores for symptoms like runny nose, sneezing, and head congestion compared to those on a placebo. Additionally, their overall quality of life, except for the ability to breathe easily, improved when they were taking vitamin D3.
However, it's important to note that the number of cold occurrences and the use of other medications, like antibiotics and pain relievers, showed no significant difference between the two groups. Overall, our findings suggest that adequate intake of vitamin D3 can indeed help reduce certain cold symptoms and enhance quality of life when a cold strikes.
8
Vitamin D3 aids cold recovery
Intake of 25-Hydroxyvitamin D3 Reduces Duration and Severity of Upper Respiratory Tract Infection: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study.
We explored how 25-hydroxyvitamin D3 (25OHD), a form of vitamin D, influences upper respiratory tract infections (URTIs), commonly known as colds. In a carefully designed clinical study, we followed 428 participants aged 45 to 74 over a 16-week period. They were randomly assigned to receive either 10 μg of 25OHD daily or a placebo, all while maintaining a double-blind setup to ensure accurate results.
Our findings revealed that those who took 25OHD had reduced duration and severity of their cold symptoms. Participants reported improvements in their overall quality of life during the bouts of URTI. By tracking the health of the participants through surveys designed to measure cold symptoms, we gathered valuable data that indicates vitamin D3 could play a helpful role in managing colds.
This suggests that incorporating vitamin D3 into our diets may be beneficial when we catch a cold, potentially leading to a quicker recovery. It’s a promising avenue for anyone looking to ease the discomfort and duration of these frustrating infections.
References
Harrison SE, Oliver SJ, Kashi DS, Carswell AT, Edwards JP, et al. Influence of Vitamin D Supplementation by Simulated Sunlight or Oral D3 on Respiratory Infection during Military Training. Med Sci Sports Exerc. 2021;53:1505. 10.1249/MSS.0000000000002604
Shimizu Y, Ito Y, Uotsu N, Yui K. Intake of 25-Hydroxyvitamin D May Reduce the Severity of Upper Respiratory Tract Infection: Post hoc Analysis of a Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study. Nutrients. 2020;12. 10.3390/nu12123769
Shimizu Y, Ito Y, Yui K, Egawa K, Orimo H. Intake of 25-Hydroxyvitamin D3 Reduces Duration and Severity of Upper Respiratory Tract Infection: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study. J Nutr Health Aging. 2018;22:491. 10.1007/s12603-017-0952-x