' 
SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8
USERS' SCORE
Good
Based on 6 Reviews
8.8
Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Vitamin D3 (as Cholecalciferol) (from Lanolin)
125 mcg (5,000 IU)
625%
Top Medical Research Studies
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.
High relevance to vitamin D research
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.
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.
Study focused on vitamin D3
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.
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.
Directly addresses vitamin D3 effects
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.
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
9.5
Joint pain resolved
Following my doctor's advice, I took a high dose of D3 to address my very low levels. It took time to reach normal levels, but I now need 10,000IU daily to stay healthy. I previously experienced joint pain and seasonal affective disorder due to lack of sunlight, but the additional D3 has significantly improved my mood and energy. I’m much happier during the cold winter months!
Read More
9.5
No winter blues
The product was delivered on time, and I began with two pills daily, eventually reducing to one every other day throughout winter 2019. After about 10-12 days, I noticed significant changes; the fatigue vanished, and I felt more active and cheerful even in the cold. Previously, I would be curled up in bed, but now I enjoy long evening walks. These Vitamin D supplements truly make a difference!
Read More
9.5
No more colds
I haven't caught a cold since starting these - even through international travel. Previously, I would fall ill about once a month. I’m not sure if it’s merely coincidence, but I’m certainly not complaining!
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8
- All Researches
8
Vitamin D enhances cold resilience
Influence of Vitamin D Supplementation by Simulated Sunlight or Oral D3 on Respiratory Infection during Military Training.
Study focused on vitamin D3
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.
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.
Directly addresses vitamin D3 effects
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.
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.
High relevance to vitamin D research
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.
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 6 Reviews
8.8
- All Reviews
- Positive Reviews
- Negative Reviews
9.5
Joint pain resolved
Following my doctor's advice, I took a high dose of D3 to address my very low levels. It took time to reach normal levels, but I now need 10,000IU daily to stay healthy. I previously experienced joint pain and seasonal affective disorder due to lack of sunlight, but the additional D3 has significantly improved my mood and energy. I’m much happier during the cold winter months!
Read More
9.5
No winter blues
The product was delivered on time, and I began with two pills daily, eventually reducing to one every other day throughout winter 2019. After about 10-12 days, I noticed significant changes; the fatigue vanished, and I felt more active and cheerful even in the cold. Previously, I would be curled up in bed, but now I enjoy long evening walks. These Vitamin D supplements truly make a difference!
Read More
9.5
No more colds
I haven't caught a cold since starting these - even through international travel. Previously, I would fall ill about once a month. I’m not sure if it’s merely coincidence, but I’m certainly not complaining!
8.8
Fewer illnesses
I am very pleased with this brand. Despite some flawed studies, I believe that Vitamin D plays a crucial role in health balance. I haven't experienced a severe cold or flu in over a decade. I take it especially when I’m not outside much during the Minnesota winters, while others in my family get ill frequently. A balanced diet is essential, and I’ll continue with my 5000 IU supplement.
Read More
8.8
Less colds
I will definitely purchase this again! These small pills are easy to swallow and a perfect way to get D3 without the added sugar from gummies. Since I began taking D3, my immune system has strengthened, and I’ve only had one cold in 18 months. My levels have improved significantly, and I'm eager to see the results next year.
Read More
