Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 21 Researches
8.1
USERS' SCORE
Good
Based on 9 Reviews
8.4
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

We sought to understand the impact of severe vitamin D deficiency on benign paroxysmal positional vertigo (BPPV), a common cause of dizziness. Previous studies showed a connection between low vitamin D levels and both the onset and recurrence of BPPV, but none had conclusively demonstrated that addressing this deficiency could lessen the recurrence of symptoms.

To examine this further, we included patients diagnosed with unilateral, idiopathic posterior canal BPPV and severe vitamin D deficiency, indicated by levels of 25-hydroxyvitamin D3 at or below 10 ng/ml. After thorough evaluations including hearing tests and balance assessments, we prescribed vitamin D therapy to our participants.

Over the following months, we monitored the changes in their vitamin D levels and followed up with them for 18 months to observe any recurrence of dizziness. Our findings revealed that patients who showed an improvement in their vitamin D levels experienced a significant reduction in the recurrence of BPPV symptoms.

This suggests that by addressing vitamin D deficiency, we can potentially offer a more effective approach to managing BPPV—lessening those troublesome dizzy spells that can really impact quality of life.
Read More
9.5
Vitamin D may alleviate dizziness
We observed a unique case of a 35-year-old woman experiencing non-traumatic multicanal benign paroxysmal positional vertigo (BPPV). Initially diagnosed with unilateral posterior canal BPPV, her condition evolved to include both horizontal and anterior canals over time.

Throughout 2012 to 2014, conventional treatments fell short in resolving her symptoms, despite her undergoing canalith repositioning treatments (CRTs). Remarkably, in 2015, we noted a correlation between her self-treatment of vitamin D—at a dose of 5000 IU daily—and the subsequent resolution of her vertigo symptoms.

This case stands out not just because of the uncommon progression from single-canal to multi-canal BPPV, but also highlights the potential role of vitamin D in symptom management. It suggests that vitamin D might offer benefits for those suffering from dizziness related to vertigo, particularly in cases where traditional treatments are ineffective.
Read More
9
Vitamin D affects BPPV recurrence
We explored the connection between serum vitamin D levels and the recurrence of benign paroxysmal positional vertigo (BPPV), a leading cause of dizziness. In this study, we reviewed the medical charts of 50 patients diagnosed with BPPV, focusing on two distinct groups: those who experienced recurring episodes and those who did not.

Our findings revealed that the average serum vitamin D level in patients who had recurring BPPV was significantly lower (12.9 ng/mL) compared to those without recurrences (19.2 ng/mL). This suggests that lower vitamin D levels might be linked to a higher chance of dizziness from BPPV recurrences.

We also identified that a vitamin D level below 12.74 ng/mL was associated with a significantly higher recurrence rate of 70.5%, compared to just 22.5% for those above this threshold. This indicates that monitoring and managing vitamin D levels could be crucial for patients at risk for recurring episodes of BPPV.

In summary, our findings underline the potential importance of vitamin D in managing dizziness, particularly in individuals suffering from BPPV. It seems that keeping an adequate level of this vitamin might help reduce the risk of future vertigo episodes.
Read More

Most Useful Reviews

9
Dizziness relief
Hamdallah, I found relief from dizziness and fatigue after taking a weekly pill along with cod liver oil.
Read More
9
Improved energy
I was pleasantly surprised by the excellent price. This product lasted about 50 weeks, and I noticed a marked difference in my energy levels. The dizziness I experienced upon waking disappeared.
Read More
9
Dizziness vanished
After experiencing dizziness, lethargy, and bone pain, I improved significantly after taking this supplement; all my symptoms have vanished.
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 21 Researches
8.1
  • All Researches
9.5
Vitamin D may alleviate dizziness
We observed a unique case of a 35-year-old woman experiencing non-traumatic multicanal benign paroxysmal positional vertigo (BPPV). Initially diagnosed with unilateral posterior canal BPPV, her condition evolved to include both horizontal and anterior canals over time.

Throughout 2012 to 2014, conventional treatments fell short in resolving her symptoms, despite her undergoing canalith repositioning treatments (CRTs). Remarkably, in 2015, we noted a correlation between her self-treatment of vitamin D—at a dose of 5000 IU daily—and the subsequent resolution of her vertigo symptoms.

This case stands out not just because of the uncommon progression from single-canal to multi-canal BPPV, but also highlights the potential role of vitamin D in symptom management. It suggests that vitamin D might offer benefits for those suffering from dizziness related to vertigo, particularly in cases where traditional treatments are ineffective.
Read More
We explored the connection between vitamin D deficiency and dizziness following a successful left-sided stapedotomy. In our case study, a 56-year-old woman who underwent the stapedotomy for otosclerosis experienced postoperative dizziness a week later. Interestingly, this dizziness occurred mainly when she turned to her left side while lying in bed.

To understand her condition better, we conducted an electrophysiological assessment of her vestibular function, which revealed a typical response associated with benign paroxysmal positional vertigo (BPPV). Notably, we found that the patient had a deficiency in vitamin D levels in her serum.

After a 7-day treatment using Epley's maneuver, which is a common approach for BPPV, the patient's symptoms resolved completely. This highlights the importance of recognizing BPPV as a potential complication after stapes surgery, especially when vitamin D levels are low.

Our findings suggest that monitoring serum levels of total calcium and vitamin D could be crucial not only for understanding dizziness but also in preventing its recurrence after such surgeries.
Read More
9.5
Vitamin D3 reduces dizziness recurrences
We explored how normalization of vitamin D levels may impact the recurrence of dizziness caused by benign paroxysmal positional vertigo (BPPV). This case-control study included patients with a history of BPPV who had low serum vitamin D levels. We divided participants into two groups: one received additional vitamin D3, while both groups underwent Epley rehabilitation therapy.

Over the course of two months, the treatment group raised their vitamin D levels significantly, while the control group did not see any change. Following this treatment period, we observed a remarkable difference in the recurrence of BPPV attacks; the group receiving vitamin D3 experienced far fewer episodes compared to the control group.

Our results indicate that boosting vitamin D3 levels significantly reduces the number of recurrent dizziness episodes in patients with BPPV. This suggests that addressing vitamin D deficiency may play a key role in managing dizziness in affected patients.
Read More
We investigated how Vitamin D levels impact dizziness, specifically in individuals with Benign Paroxysmal Positional Vertigo (BPPV). This condition causes sudden episodes of vertigo, often triggered by changes in head position.

In our study, we enrolled 100 patients diagnosed with BPPV and measured their Vitamin D levels. Based on these measurements, we classified participants as having deficient, insufficient, or sufficient Vitamin D levels. Those with deficiencies received Vitamin D supplementation of 2000 IU daily for six months.

Over the course of a year, we followed these patients monthly, monitoring both the frequency and severity of their BPPV episodes using the Vertigo Symptom Scale. Our findings were quite significant: those with Vitamin D deficiency experienced BPPV at a rate of 71%, compared to only 20% in those who had sufficient Vitamin D levels. Moreover, the severity of vertigo symptoms was notably higher in the deficient group.

Importantly, we observed that supplementation appeared to reduce both the incidence and severity of BPPV episodes over time. This highlights the potential role of Vitamin D in supporting vestibular health and suggests it may be a valuable component of managing BPPV. However, further controlled studies are needed to fully understand these connections and their implications for patient care.
Read More
9
Vitamin D affects BPPV recurrence
We explored the connection between serum vitamin D levels and the recurrence of benign paroxysmal positional vertigo (BPPV), a leading cause of dizziness. In this study, we reviewed the medical charts of 50 patients diagnosed with BPPV, focusing on two distinct groups: those who experienced recurring episodes and those who did not.

Our findings revealed that the average serum vitamin D level in patients who had recurring BPPV was significantly lower (12.9 ng/mL) compared to those without recurrences (19.2 ng/mL). This suggests that lower vitamin D levels might be linked to a higher chance of dizziness from BPPV recurrences.

We also identified that a vitamin D level below 12.74 ng/mL was associated with a significantly higher recurrence rate of 70.5%, compared to just 22.5% for those above this threshold. This indicates that monitoring and managing vitamin D levels could be crucial for patients at risk for recurring episodes of BPPV.

In summary, our findings underline the potential importance of vitamin D in managing dizziness, particularly in individuals suffering from BPPV. It seems that keeping an adequate level of this vitamin might help reduce the risk of future vertigo episodes.
Read More

User Reviews

USERS' SCORE
Good
Based on 9 Reviews
8.4
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Dizziness relief
Hamdallah, I found relief from dizziness and fatigue after taking a weekly pill along with cod liver oil.
Read More
9
Improved energy
I was pleasantly surprised by the excellent price. This product lasted about 50 weeks, and I noticed a marked difference in my energy levels. The dizziness I experienced upon waking disappeared.
Read More
9
Dizziness vanished
After experiencing dizziness, lethargy, and bone pain, I improved significantly after taking this supplement; all my symptoms have vanished.
Read More
9
No dizziness
I love this product. It hasn’t upset my stomach, and I’ve not noticed a bad taste. After a month, my big vitamin D deficiency caused dizziness and lethargy, but it has significantly improved.
Read More
7.5
Reduced dizziness
Vitamin D is crucial; many suffer from a deficiency, leading to symptoms like dizziness. After taking a high dose weekly, I noticed a significant improvement in my symptoms. It’s advisable to take it with a meal for better absorption. The pill size is manageable, and it does not irritate the throat.
Read More

Frequently Asked Questions

9
No dizziness
I love this product. It hasn’t upset my stomach, and I’ve not noticed a bad taste. After a month, my big vitamin D deficiency caused dizziness and lethargy, but it has significantly improved.
9
Dizziness relief
Hamdallah, I found relief from dizziness and fatigue after taking a weekly pill along with cod liver oil.
9
Improved energy
I was pleasantly surprised by the excellent price. This product lasted about 50 weeks, and I noticed a marked difference in my energy levels. The dizziness I experienced upon waking disappeared.
9
Dizziness vanished
After experiencing dizziness, lethargy, and bone pain, I improved significantly after taking this supplement; all my symptoms have vanished.
7.5
No more dizziness
It’s fantastic! I often felt low pressure and dizziness, but since using this iHerb product along with Centrum +50, Vitamin K2, and Vitamin D3 5000 IU, my health has improved.
7.5
Reduced dizziness
Vitamin D is crucial; many suffer from a deficiency, leading to symptoms like dizziness. After taking a high dose weekly, I noticed a significant improvement in my symptoms. It’s advisable to take it with a meal for better absorption. The pill size is manageable, and it does not irritate the throat.
We conducted a double-blinded, randomized controlled trial to examine the effect of vitamin D on dizziness associated with Benign Paroxysmal Positional Vertigo (BPPV) in older adults. The study included a group of participants who were vitamin D deficient, randomly assigned to either receive vitamin D treatment or a placebo over a 26-week period.

Our findings showed an impressive 87% reduction in BPPV recurrence rates among those who received vitamin D compared to the placebo group. Moreover, the treatment group experienced significantly longer intervals before experiencing a first recurrence of dizziness. However, there was no notable difference in outcomes when we compared the treatment group with those who had adequate vitamin D levels.

Ultimately, these results suggest that vitamin D supplementation could play a vital role in managing BPPV episodes, which may lead to reduced fall risks among older adults. As persistent dizziness can severely impact balance and stability, addressing vitamin D deficiency could be an essential part of care for seniors suffering from BPPV.
We investigated how Vitamin D levels impact dizziness, specifically in individuals with Benign Paroxysmal Positional Vertigo (BPPV). This condition causes sudden episodes of vertigo, often triggered by changes in head position.

In our study, we enrolled 100 patients diagnosed with BPPV and measured their Vitamin D levels. Based on these measurements, we classified participants as having deficient, insufficient, or sufficient Vitamin D levels. Those with deficiencies received Vitamin D supplementation of 2000 IU daily for six months.

Over the course of a year, we followed these patients monthly, monitoring both the frequency and severity of their BPPV episodes using the Vertigo Symptom Scale. Our findings were quite significant: those with Vitamin D deficiency experienced BPPV at a rate of 71%, compared to only 20% in those who had sufficient Vitamin D levels. Moreover, the severity of vertigo symptoms was notably higher in the deficient group.

Importantly, we observed that supplementation appeared to reduce both the incidence and severity of BPPV episodes over time. This highlights the potential role of Vitamin D in supporting vestibular health and suggests it may be a valuable component of managing BPPV. However, further controlled studies are needed to fully understand these connections and their implications for patient care.
We systematically reviewed studies exploring the impact of vitamin D supplementation on benign paroxysmal positional vertigo (BPPV), a common cause of dizziness linked to displaced tiny crystals in the inner ear. Our analysis included various databases and focused on literature from 1947 to April 2020.

What we found is quite interesting. One randomized clinical trial suggested that supplementing vitamin D significantly reduced the recurrence of vertigo in patients with low levels of this vitamin. More specifically, the study indicated that vitamin D supplementation brought down the annual recurrence rate, showcasing the potential benefits of optimizing vitamin D levels for those suffering from BPPV.

However, it’s important to note that while the one rigorous study pointed out positive effects, non-randomized studies suggested there could be little to no impact. Given this mixed evidence, we conclude that while vitamin D might play a role in managing BPPV, we still need more high-quality research to firmly establish these findings.
7
Vitamin D linked to BPPV recurrence
We explored the link between vitamin D deficiency and dizziness in patients suffering from benign paroxysmal positional vertigo (BPPV). This study involved a retrospective analysis of 149 adults who were referred to a specialist clinic over a few years. Every participant had been diagnosed with both BPPV and low vitamin D levels.

Our findings revealed that about 52% of these patients experienced recurring episodes of BPPV. We noticed that higher serum vitamin D levels were associated with a reduced likelihood of experiencing these recurrences. Specifically, for each increment in vitamin D levels, patients were 16.7% less likely to face repeated bouts of dizziness. Interestingly, a history of migraines did not show a significant connection to BPPV recurrence in our study.

While we established a clear association between vitamin D levels and the frequency of dizziness episodes, we also noted that there wasn't a significant difference in the duration of these episodes based on vitamin D status. Looking ahead, we recommend conducting further research, particularly randomized controlled trials, to test the effects of vitamin D supplementation on BPPV and determine the best dosages for those affected.
9.5
Vitamin D may alleviate dizziness
We observed a unique case of a 35-year-old woman experiencing non-traumatic multicanal benign paroxysmal positional vertigo (BPPV). Initially diagnosed with unilateral posterior canal BPPV, her condition evolved to include both horizontal and anterior canals over time.

Throughout 2012 to 2014, conventional treatments fell short in resolving her symptoms, despite her undergoing canalith repositioning treatments (CRTs). Remarkably, in 2015, we noted a correlation between her self-treatment of vitamin D—at a dose of 5000 IU daily—and the subsequent resolution of her vertigo symptoms.

This case stands out not just because of the uncommon progression from single-canal to multi-canal BPPV, but also highlights the potential role of vitamin D in symptom management. It suggests that vitamin D might offer benefits for those suffering from dizziness related to vertigo, particularly in cases where traditional treatments are ineffective.

References

  1. Huang X, Chua KW, Moh SPS, Yuen HW, Low DYM, et al. Falls and physical function in older patients with Benign Paroxysmal Positional Vertigo (BPPV): findings from a placebo controlled, double blinded randomized control trial (RCT) investigating efficacy of vitamin D treatment in lowering the recurrence rate of BPPV. Aging Clin Exp Res. 2025;37:43. 10.1007/s40520-025-02938-4
  2. Kumar S, Dutta A, Biradar K, Gupta M. Evaluating the Vitamin D Deficiency-BPPV Link: Correlation or Causation?. Indian J Otolaryngol Head Neck Surg. 2024;76:5263. 10.1007/s12070-024-04961-9
  3. Aygun D, Dumur S, Elgormus MN, Alpaslan MS, Uzun H. Serum Otoconin-90 and Otolin-1 Concentrations in Benign Paroxysmal Positional Vertigo. Biomolecules. 2024;14. 10.3390/biom14101279
  4. Lin T, Wu C, Zhang L, Ding L. Association of vitamin-D deficiency with vestibular function in patients with idiopathic benign paroxysmal positional vertigo. J Laryngol Otol. 2025;139:40. 10.1017/S0022215124001282
  5. Chua KW, Huang X, Koh XH, Soh JFJY, Barrera VC, et al. Randomized Controlled Trial Assessing Vitamin D's Role in Reducing BPPV Recurrence in Older Adults. Otolaryngol Head Neck Surg. 2025;172:127. 10.1002/ohn.954
  6. Chu C, Chan YM, Tang J. Clinical Outcomes in Patients With Benign Paroxysmal Positional Vertigo and Vitamin D Deficiency: A Singaporean Perspective. Cureus. 2024;16:e60325. 10.7759/cureus.60325
  7. Abedi MS, Flink TS, Roca CP. A Rare Presentation of Multicanal Benign Paroxysmal Positional Vertigo in a Premenopausal Woman With Osteopenia: A Case Report. Cureus. 2024;16:e55421. 10.7759/cureus.55421
  8. Rhim G, Kim MJ. Vitamin D Supplementation and Recurrence of Benign Paroxysmal Positional Vertigo. Nutrients. 2024;16. 10.3390/nu16050689
  9. Saeed Al-Rawi TS, Al-Ani RM. Vitamin D Deficiency and the Risk of Recurrent Benign Paroxysmal Positional Vertigo. Cureus. 2024;16:e52433. 10.7759/cureus.52433
  10. Chauhan I, Sidhu J, Lal B, Dhadwal M, Azad R. Role of Serum Markers in Benign Paroxysmal Positional Vertigo: Are They Useful?. Indian J Otolaryngol Head Neck Surg. 2023;75:1731. 10.1007/s12070-023-03727-z
  11. Zubčić Ž, Včeva A, Mendeš T, Maleš J, Mihalj H, et al. SUCCESSFUL REPOSITIONING PROCEDURE FOR BENIGN PAROXYSMAL POSITIONAL VERTIGO AFTER STAPEDOTOMY. Acta Clin Croat. 2022;61:547. 10.20471/acc.2022.61.03.22
  12. Sharma K, Ojha T, Dabaria R, Chhabra B, Trivedi BB, et al. Relation Between Posterior Canal Benign Paroxysmal Positional Vertigo and Vitamin D Deficiency. Indian J Otolaryngol Head Neck Surg. 2022;74:4405. 10.1007/s12070-021-03070-1
  13. Shin HI, Park Y, Lee HJ, Jeon EJ. Correlation between serum vitamin D level and benign paroxysmal positional vertigo recurrence. Auris Nasus Larynx. 2023;50:700. 10.1016/j.anl.2022.12.017
  14. Mancera Sánchez J, Hernaiz Leonardo JC, Ishiwara Niembro JK, Lesser JC. Therapeutic Effect of the Correction of Vitamin D Deficiency in Patients with Benign Paroxysmal Positional Vertigo. A Randomized Clinical Trial. Int Arch Otorhinolaryngol. 2022;26:e666. 10.1055/s-0041-1730992
  15. Libonati GA, Leone A, Martellucci S, Gallo A, Albera R, et al. Prevention of Recurrent Benign Paroxysmal Positional Vertigo: The Role of Combined Supplementation with Vitamin D and Antioxidants. Audiol Res. 2022;12:445. 10.3390/audiolres12040045
  16. Hong X, Christ-Franco M, Moher D, Tse D, Lelli DA, et al. Vitamin D Supplementation for Benign Paroxysmal Positional Vertigo: A Systematic Review. Otol Neurotol. 2022;43:e704. 10.1097/MAO.0000000000003586
  17. Gu X, Dong F, Gu J. Analysis of effect of 1α-hydroxyvitamin D3 on benign paroxysmal positional vertigo and risk factors. Exp Ther Med. 2018;15:2321. 10.3892/etm.2018.5699
  18. Sheikhzadeh M, Lotfi Y, Mousavi A, Heidari B, Bakhshi E. The effect of serum vitamin D normalization in preventing recurrences of benign paroxysmal positional vertigo: A case-control study. Caspian J Intern Med. 2016;7:173.
  19. Sheikhzadeh M, Lotfi Y, Mousavi A, Heidari B, Monadi M, et al. Influence of supplemental vitamin D on intensity of benign paroxysmal positional vertigo: A longitudinal clinical study. Caspian J Intern Med. 2016;7:93.
  20. Talaat HS, Kabel AM, Khaliel LH, Abuhadied G, El-Naga HA, et al. Reduction of recurrence rate of benign paroxysmal positional vertigo by treatment of severe vitamin D deficiency. Auris Nasus Larynx. 2016;43:237. 10.1016/j.anl.2015.08.009
  21. Mori K, Niimura S, Mizuno K. [A case of idiopathic hypoparathyroidism complicated with chronic thyroiditis]. Nihon Naibunpi Gakkai Zasshi. 1991;67:1339.
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