Nature's Way Vitamin D3 Extra Strength
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Supplement Facts
Serving Size:  1 Softgel
Amount Per Serving
%DV
Vitamin D3 (as cholecalciferol)
50 mg
250%

The product is found useful for the following medical conditions

Allergies details

SCIENTIFIC SCORE
Possibly Effective
Based on 12 Researches
7.5
USERS' SCORE
Good
Based on 3 Reviews
8.7
8
Vitamin D deficiency linked to allergies
Does vitamin D deficiency predispose to allergic proctocolitis?
Most Relevant Research
We investigated the potential connection between vitamin D deficiency and allergic proctocolitis (AP) in infants. Our study involved a careful comparison of vitamin D levels in infants diagnosed with AP against those of healthy infants. This meticulous, prospective approach allows us to draw insightful conclusions about how vitamin D might be influencing allergic conditions.

We found that vitamin D levels were noticeably lower in infants suffering from AP compared to their healthy peers. Notably, a significant percentage of AP patients—34.7%—were found to be vitamin D deficient or insufficient. Furthermore, the study revealed that infants with vitamin D levels below 40.75 mcg/L were 3.5 times more likely to develop AP.

Our findings suggest an intriguing association between vitamin D deficiency and allergic proctocolitis, hinting that the rising rates of such allergies may be influenced by environmental factors. It appears crucial that we assess vitamin D levels in infants diagnosed with AP, as this could contribute to better understanding and management of the condition.
9.5
Effective for family
Most Useful Review
Nature's Way is always excellent; I trust and love it. My family has severe allergies, and this is effective without side effects. We add it to our diet during winter to boost our immunity and manage allergy symptoms.

Acne details

SCIENTIFIC SCORE
Questionable
Based on 24 Researches
6.8
USERS' SCORE
Good
Based on 2 Reviews
8.6
8
Vitamin D's effect on acne
Association between Vitamin D Level and Acne, and Correlation with Disease Severity: A Meta-Analysis.
Most Relevant Research
We examined how vitamin D levels relate to acne and the potential connection with acne severity. By analyzing data from various studies, we found that 1,362 individuals with acne were compared against 1,081 healthy controls.

Our findings revealed that those with acne had significantly lower vitamin D levels compared to the healthy participants. Additionally, vitamin D deficiency was more prevalent among acne sufferers. Interestingly, we also observed a negative correlation between vitamin D levels and acne severity, suggesting that lower levels of this vitamin might be associated with more severe acne.

This evidence points to the possibility that vitamin D plays a role in acne development. However, while our results are compelling, they encourage further investigation into how vitamin D might influence acne severity and whether its supplementation could be beneficial for those affected by this condition.
9.5
Remarkable results
Most Useful Review
Amazing! I love this supplement. I've noticed the remarkable effect it has had on my acne. I take it once a day and highly recommend it.

Cold Sores details

SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 2 Reviews
8.6
8
Genetic factors in cold sores
Associations between host genetic variants and Herpes Simplex Labialis in the TwinsUK cohort.
Most Relevant Research
We explored how a specific genetic variant associated with vitamin D might influence the occurrence of cold sores, also known as Herpes Simplex Labialis (HSL). Our research involved nearly 1,800 participants from the TwinsUK registry, with a focus on a group of 595 that completed both blood tests and questionnaires regarding their cold sore experiences.

From the participants surveyed, 235 reported having experienced cold sores at least once, and out of these, 160 indicated that they had recurrent episodes. While we investigated several genetic variants, including three commonly discussed in relation to cold sores, we found no significant links between these particular SNPs and the occurrence or recurrence of cold sores.

However, our analysis did reveal a noteworthy association with a genetic variation in the Vitamin D Receptor (VDR) gene. This variant was significantly correlated with both the history of cold sore outbreaks and their frequency. While this suggests a potential relationship between vitamin D-related genetics and cold sore experiences, it does not mean that vitamin D treatment has a proven direct effect on reducing these occurrences.

Overall, our findings provide an intriguing glimpse into the genetic factors that may play a role in cold sore reactivation, especially as it pertains to the VDR gene. Yet, since we didn't explore the direct effects of vitamin D supplementation, more research would be needed to conclusively determine how vitamin D treatment might influence cold sore frequency.
9.5
Increased immunity
Most Useful Review
I have been taking Vitamin D for a long time from various manufacturers, but I prefer Nature's Way as it does not cause a dry mouth. I take up to 5,000 daily. The results have been remarkable—my immunity has increased, and I haven't had any colds for over a year. Additionally, my stamina during physical exertion has improved. Vitamin D acts as a cofactor for female hormones and enhances intestinal motility. I highly recommend it.

Pelvic Pain details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.6
9.5
No more pain
Most Useful Review
Must eat every day. It has been a long time since I took D3, and I no longer experience menstrual pain or PMS issues; everyone should give it a go!

Cancer details

SCIENTIFIC SCORE
Possibly Effective
Based on 14 Researches
7.5
USERS' SCORE
Good
Based on 3 Reviews
8.5
8
Vitamin D3 offers anti-cancer benefits
Liposomal encapsulation of cholecalciferol mitigates toxicity and delays tumor growth.
Most Relevant Research
We investigated the potential of vitamin D3, also known as cholecalciferol, in combating cancer while addressing concerns about its toxicity at higher doses. This study focused on enhancing the effectiveness of vitamin D3 through a clever method called liposomal encapsulation, which helps minimize side effects.

We prepared liposomal vitamin D3 (VD-LP) and conducted various tests to understand its capabilities. We found that this encapsulated form not only maintained high efficiency but also demonstrated improved stability. Our analyses showed that VD-LP had strong effects against cancer cells from colorectal, breast, and prostate cancers. Remarkably, it affected gene expression in immune cells, boosting elements that help fight infections and support the body's defenses.

Notably, VD-LP did a great job slowing tumor growth in mice and improved their survival rates without causing adverse effects like hypercalcemia, which is often a concern with regular vitamin D3 use. This evidence indicates that liposomal encapsulation of vitamin D3 could offer an effective cancer treatment strategy while minimizing unwanted side effects.

We believe this may pave the way for further research and clinical applications, showcasing vitamin D3 as a valuable addition to cancer therapy.
8.8
Convenient for patients
Most Useful Review
Take one of these; it provides 2000 IU, which is very convenient and suitable for cancer patients.

Common Cold details

SCIENTIFIC SCORE
Moderately Effective
Based on 12 Researches
8.1
USERS' SCORE
Good
Based on 4 Reviews
8.5
8
Vitamin D3 improves cold symptoms
Intake of 25-Hydroxyvitamin D3 Reduces Duration and Severity of Upper Respiratory Tract Infection: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study.
Most Relevant Research
We conducted a thorough investigation into how 25-hydroxyvitamin D3, commonly referred to as vitamin D3, impacts upper respiratory tract infections (URTIs), particularly the common cold. This study was carried out as a randomized, double-blind, placebo-controlled trial, engaging 428 participants, all aged between 45 and 74, across three clinics in Japan.

Participants were divided into two groups, with one receiving a daily dose of 10 μg of vitamin D3, while the other took a placebo for 16 weeks. Our findings highlighted that those who took vitamin D3 experienced a reduction in the duration of their upper respiratory symptoms, as well as a decrease in severity and improvement in their quality of life during illness.

Overall, our results indicate that supplementing with vitamin D3 might be a proactive step in handling the discomforts associated with common colds. This simple addition to one's daily routine could lead to a notably better experience when facing URTIs, providing a hopeful outlook for those looking for relief from their symptoms.
9.5
Improves immunity
Most Useful Review
I've been taking Vit D for a long time from various brands, but I prefer Natures Way as it doesn't cause a dry mouth. I consume up to 5,000 IU daily. The result has been increased immunity—I haven't suffered from colds for over a year. My stamina has also improved during exercise. Vit D acts as a cofactor for female hormones and enhances intestinal motility. I recommend it.

Bone Pain details

SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.7
USERS' SCORE
Good
Based on 6 Reviews
8.3
9
Vitamin D3 correction improves pain
Role of Pre-operative Correction of Vitamin D3 Deficiency in Controlling Post-operative Bone Pain after Unicompartmental Knee Arthroplasty.
Most Relevant Research
We explored the impact of vitamin D3 levels on bone pain that patients experience after undergoing unicompartmental knee arthroplasty (UKA). The study involved 240 participants who were divided into three groups based on their vitamin D status—some received treatment before surgery, some after, and others had normal levels to begin with.

By administering vitamin D3 in three doses, we aimed to see if correcting deficiencies could alleviate post-operative bone pain. Throughout the recovery period, we measured pain levels using the visual analog scale at various intervals after the surgery.

Our findings clearly demonstrated that patients who corrected their vitamin D3 deficiency before surgery reported significantly better pain control after the operation compared to those who were treated afterwards or those who started with adequate levels. This highlights the importance of testing and addressing vitamin D status prior to orthopedic procedures, showing that it is a modifiable risk factor affecting recovery.
8.3
Effective for osteoporosis
Most Useful Review
I was initially concerned about the capacity, but this was the old 2000 IU. I experienced sudden osteoporosis 15 years ago. At that time, I found it was recommended to consume 200 IU D3 daily. I hurriedly purchased D3 and began taking it. Three months later, my doctor remarked, “I don't know what you did, but keep it up.” Even then, doctors agreed bones don’t regenerate once they deteriorate. Since then, I’ve been consistent with D3. It’s essential to take it.
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