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NOW Supplements Vitamin D-3
SCIENTIFIC SCORE
Possibly Effective
Based on 24 Researches
7.6
USERS' SCORE
Good
Based on 10 Reviews
8.5
Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Vitamin D3 (as Cholecalciferol) (From Lanolin)
1,250 mcg (50,000 IU)
6250%

Top Medical Research Studies

9
Vitamin D3 improves back pain
Vitamin D Supplementation in Patients with Chronic Low Back Pain: An Open Label, Single Arm Clinical Trial.
Direct effect on back pain
We sought to understand the role of vitamin D3 supplementation in alleviating chronic low back pain (CLBP). In a single-arm, open-label study at a tertiary care hospital, we worked with 68 patients suffering from CLBP for at least three months, each demonstrating a significant pain level on a visual scale alongside low vitamin D levels.

Participants received 60,000 IU of vitamin D3 weekly for eight weeks. We tracked pain intensity and functional disability at various stages: at the outset, and then at two, three, and six months post-supplementation. Notably, we witnessed a remarkable increase in vitamin D levels from an average of 12.8 ng/mL to 36.07 ng/mL in those eight weeks, with 66% of participants achieving normal vitamin D levels.

The benefits didn’t stop there. Patients reported a significant drop in their pain scores at all follow-up periods, improving from 81 to 36 on the scale. Functional ability also saw enhancement over time, proving the positive influence of vitamin D3 on both pain and everyday activities.

Overall, our findings suggest that vitamin D3 supplementation can be an effective avenue for improving pain intensity and functionality in individuals with low back pain, warranting further investigation through controlled clinical trials.
Read More
9.5
Vitamin D aids back pain recovery
An Unusual Mimic of Axial Spondyloarthritis: A Case Report.
High relevance to back pain treatment
We observed a fascinating case involving a male in his 40s who experienced persistent inflammatory back pain for three months. Despite having a negative test for HLA-B27, a marker often associated with axial spondyloarthritis, clinical assessments suggested possible underlying issues.

The clinical investigation led to an MRI, which confirmed bilateral symmetrical sacroiliitis. Interestingly, further tests showed he had very low vitamin D levels along with elevated parathyroid hormone—indicating a possible deficiency impacting his condition.

After starting treatment with vitamin D alongside nonsteroidal anti-inflammatory drugs (NSAIDs), he experienced notable relief from his symptoms. His condition improved significantly, and follow-up tests indicated that his vitamin D levels had normalized.

This case demonstrates the potential benefits of vitamin D in managing back pain, especially when classical markers are inconclusive. It highlights how a thorough diagnosis can reveal interconnected health issues and improve treatment outcomes.
Read More
8
Vitamin D alleviates back pain
The effectiveness of vitamin D3 supplementation in improving functional outcome of non-surgically treated symptomatic lumbar spinal stenosis: Randomized controlled clinical trial - Pilot study.
High relevance to query
We conducted a randomized controlled trial to investigate how vitamin D supplementation might alleviate lower back pain in patients suffering from lumbar spinal stenosis. This study involved patients with severely low vitamin D levels, specifically under 10 ng/mL. Participants were divided into two groups: one received vitamin D supplements, while the other did not.

Over a period of several weeks, we measured pain levels and functional recovery using simple questionnaires and health surveys. Notably, we observed that those who received vitamin D injections reported significant improvements in their back pain and overall quality of life compared to those who didn’t.

Our findings suggest that addressing vitamin D deficiency might play a crucial role in managing back pain for individuals with spinal stenosis who are not candidates for surgical intervention. The results demonstrate a promising correlation between high-dose vitamin D supplementation and enhanced functional outcomes in these patients.
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Most Useful Reviews

9
Manageable back pain
Definitely works! My wife and I wanted to boost our D levels and paired this brand with Life Extensions Super K. After two weeks, my wife's D level improved significantly, and we adjusted her dosage. I've also noticed a significant improvement in my osteoarthritis pain in my lower back and hips, and I've reduced my NSAID intake drastically.
Read More
9.5
Relieves back pain
A product like magic. One pill alleviates back pain and leg pain but requires follow-up. Excellent quality and wonderful ingredients at a great price. The dosage is one pill weekly.
Read More
9.5
Back pain relief
I suffered from hair loss, depression, joint pain, fatigue, and severe vitamin D deficiency. After taking this supplement, my back pain, fatigue, and depression have disappeared, thank God. The quantity is excellent, and the product has a long shelf life: one pill weekly for eight weeks.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 24 Researches
7.6
  • All Researches
9.5
Vitamin D aids back pain recovery
An Unusual Mimic of Axial Spondyloarthritis: A Case Report.
High relevance to back pain treatment
We observed a fascinating case involving a male in his 40s who experienced persistent inflammatory back pain for three months. Despite having a negative test for HLA-B27, a marker often associated with axial spondyloarthritis, clinical assessments suggested possible underlying issues.

The clinical investigation led to an MRI, which confirmed bilateral symmetrical sacroiliitis. Interestingly, further tests showed he had very low vitamin D levels along with elevated parathyroid hormone—indicating a possible deficiency impacting his condition.

After starting treatment with vitamin D alongside nonsteroidal anti-inflammatory drugs (NSAIDs), he experienced notable relief from his symptoms. His condition improved significantly, and follow-up tests indicated that his vitamin D levels had normalized.

This case demonstrates the potential benefits of vitamin D in managing back pain, especially when classical markers are inconclusive. It highlights how a thorough diagnosis can reveal interconnected health issues and improve treatment outcomes.
Read More
9.5
Pregnancy osteoporosis therapy outcomes
Successful neridronate therapy in pregnancy-associated osteoporosis.
Combined treatment limits isolation
We observed a rare condition known as pregnancy-associated osteoporosis, which affected a 38-year-old woman after she gave birth. Just a month postpartum, she experienced sudden back pain due to four vertebral fractures, and her bone density was notably low, especially in the spine.

While the patient's biochemical tests were largely normal, we noted some concerning markers, including elevated urinary deoxypyridinoline and slightly reduced levels of serum vitamin D3. To address her symptoms and improve her bone health, a combination therapy consisting of neridronate, calcium, and cholecalciferol (vitamin D3) was initiated.

Encouragingly, after one month on this treatment, she reported being pain-free. Moreover, a follow-up bone density scan after six months indicated a significant improvement in her bone density in both the spine and hip areas. This suggests that while neridronate played a crucial role, it's also important to recognize the potential benefits of vitamin D3 within this treatment regimen. However, since the effects were part of a combination therapy, we cannot isolate the specific impact of vitamin D3 on back pain alone.
Read More
9.5
PLO treatment and vitamin D3
Effective treatment of severe pregnancy and lactation-related osteoporosis with teriparatide: case report and review of the literature.
Vitamin D3's role is unclear
We explored the impact of various treatments, including vitamin D3, on severe back pain caused by pregnancy-related osteoporosis (PLO). In a significant case study, a 23-year-old woman experiencing debilitating back pain was treated after her first childbirth. By monitoring her bone mineral density, we noted low T- and Z-scores in her lumbar spine.

The treatment plan included teriparatide, calcium, and vitamin D3. While we observed substantial improvements in bone density and relief from pain, it’s important to note that the isolated effect of vitamin D3 is difficult to pinpoint due to its combination with other treatments.

Overall, while vitamin D3 plays a notable role alongside teriparatide in managing back pain linked to PLO, its individual effectiveness remains somewhat unclear.
Read More
9
Vitamin D aids back pain relief
Adult-onset hypophosphatemic osteomalacia as a cause of widespread musculoskeletal pain: A retrospective case series of single center experience.
Significant relevance to treatment
We conducted a retrospective review to uncover how vitamin D treatment impacts back pain in individuals diagnosed with adult-onset hypophosphatemic osteomalacia. In our exploration, we found that eight patients, primarily experiencing widespread musculoskeletal pain, were assessed over a span from January 2011 to December 2019.

Each patient presented with low phosphorus levels, elevated alkaline phosphatase, and indicative imaging results. Notably, back pain was reported as the most common complaint, along with muscle weakness in over half of the cases. Our findings highlighted the effectiveness of vitamin D in tandem with phosphorus supplementation, as all patients reported significant improvements in pain, muscle strength, and gait after receiving treatment.

Importantly, we noted that the specific diagnosis of each patient varied. In six cases, treatment was prompted by adefovir-induced Fanconi syndrome, while the remaining two patients had tumor-induced osteomalacia and light-chain nephropathy. This variation indicates the diverse etiologies of hypophosphatemic osteomalacia, further emphasizing the importance of targeted treatment based on individual needs.

In conclusion, our study suggests that vitamin D, especially when combined with phosphorus, plays a crucial role in alleviating back pain associated with this condition. By enhancing the understanding of the relationship between vitamin D treatment and back pain, we aim to shed light on effective management strategies for those suffering from similar symptoms.
Read More
9
Denosumab improves back pain outcomes
Effectiveness of denosumab on back pain-related disability and quality-of-life in patients with vertebral fragility fractures.
Difficulty isolating vitamin D3 impact
We explored the effectiveness of denosumab on alleviating back pain and enhancing quality of life in post-menopausal women suffering from vertebral fractures. This study, involving 140 women aged around 70, assessed participants who received denosumab alongside calcium and vitamin D3 for a year.

While treatment with denosumab led to significant improvements in back pain disability, overall physical and mental health quality metrics, including the Spine Pain Index and the EuroQol-5D scale, were markedly more effective post-treatment.

The ongoing role of vitamin D3 remains obscured, as it was part of a combined regimen that made it challenging to isolate its individual effects on back pain. Thus, while we observed clear benefits from the denosumab treatment, the unique contribution of vitamin D3 to back pain relief requires further investigation.
Read More

User Reviews

USERS' SCORE
Good
Based on 10 Reviews
8.5
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Manageable back pain
Definitely works! My wife and I wanted to boost our D levels and paired this brand with Life Extensions Super K. After two weeks, my wife's D level improved significantly, and we adjusted her dosage. I've also noticed a significant improvement in my osteoarthritis pain in my lower back and hips, and I've reduced my NSAID intake drastically.
Read More
9.5
Relieves back pain
A product like magic. One pill alleviates back pain and leg pain but requires follow-up. Excellent quality and wonderful ingredients at a great price. The dosage is one pill weekly.
9.5
Back pain relief
I suffered from hair loss, depression, joint pain, fatigue, and severe vitamin D deficiency. After taking this supplement, my back pain, fatigue, and depression have disappeared, thank God. The quantity is excellent, and the product has a long shelf life: one pill weekly for eight weeks.
Read More
8.3
Eases back pain
I highly recommend this product for those with deficiencies. My back pain has eased, and my hair feels healthier.
5.5
Temporary relief
My lower back pain improves with this product but tends to return fairly quickly after use.
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