Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 22 Researches
7.7
USERS' SCORE
Good
Based on 24 Reviews
8.4
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

We explored the effect of vitamin D3 supplementation on anxiety levels among elderly individuals diagnosed with prediabetes. In our study, we randomly assigned participants to receive either a weekly dose of 25,000 IU of vitamin D3 or a placebo, alongside general lifestyle recommendations. Over the course of 12 months, we measured anxiety levels using standardized assessments.

At both the six-month and twelve-month marks, the participants receiving vitamin D3 reported significantly lower anxiety levels compared to those who did not receive the supplementation. Specifically, scores measuring anxiety decreased from 38.02 to 32.35 in the vitamin D group, while control participants’ scores remained much higher throughout the study.

These results indicate that vitamin D3 could be a beneficial and safe option for alleviating anxiety in an older population already facing the challenges of prediabetes. The participants who had vitamin D deficiency or insufficiency at the start of the study experienced similar improvements, emphasizing the treatment's potential across various baseline vitamin D levels.

Overall, our findings support the idea that vitamin D supplementation can effectively help mitigate anxiety symptoms in older adults, and we believe further research is warranted to better understand the mechanisms at play.
Read More
9
We explored how coal dust exposure leads to anxiety and depression-like behaviors in mice, using a pneumoconiosis model that was established after 28 days of exposure. This model allows us to closely observe the effects of environmental factors on mental health. Through treating the mice with Vitamin D3 for three months, we aimed to see if this treatment could alleviate anxiety symptoms.

Our findings were quite revealing. Vitamin D3 treatment showed a significant positive effect; it reduced signs of anxiety and depression. Specifically, we saw improvements in tests designed to measure these behaviors, along with a decrease in markers of astrocyte activation—cells in the brain that can become overactive in stressful situations. Vitamin D3 also promoted better neuron protection and enhanced the distribution of brain-derived neurotrophic factor (BDNF), a crucial element for brain health.

This study suggests that Vitamin D might serve as a useful approach for managing mood disorders resulting from environmental stressors such as coal dust. These findings also highlight the importance of further exploring Vitamin D3 as a potential treatment avenue for anxiety exacerbated by particulate matter exposure.
Read More
9
Vitamin D3 reduces anxiety in withdrawal
We examined the effects of vitamin D3 on anxiety in mice experiencing nicotine withdrawal. To conduct our research, we divided male C57/BL6 mice into four distinct groups: those receiving a vehicle, those receiving nicotine alone, those receiving vitamin D3 alone, and those receiving both nicotine and vitamin D3.

During the six-week study, the mice were given nicotine through their drinking water and vitamin D3 in their feed. When the withdrawal phase kicked in, we observed that mice treated with vitamin D3 demonstrated significantly reduced anxiety-like behaviors. This was measured using open-field tests and marble burying tests, where these mice spent more time in the central area and buried fewer marbles compared to those that did not receive vitamin D3.

Additionally, our study revealed that vitamin D3 supplementation reduced hippocampal NR2A expression, which may be linked to lowering anxiety during nicotine withdrawal. These findings suggest that vitamin D3 supplementation could be a promising dietary intervention for people dealing with anxiety related to quitting smoking.
Read More

Most Useful Reviews

9
Anxiety reduction
97 people found this helpful
I have genetically predisposed anxiety, and after moving, it became debilitating. Following several doctors' visits, I discovered my vitamin D level was critically low. After starting 5,000 IU daily, I noted significant improvements in my anxiety attacks, which have nearly vanished, allowing me to face daily challenges again.
Read More
9
Alleviated anxiety
1 people found this helpful
I discovered that vitamin D3 is excellent for my immunity and has significantly eased my anxiety. Coupled with MCT oil, it enhances absorption.
Read More
9
Mood enhancement
1 people found this helpful
Today, I want to share my affection for vitamin D3. It strengthens bones, supports the immune and nervous systems, and significantly improves mood and anxiety levels. I take up to 2000 IU daily based on my needs and it has consistently suited me well. I will certainly reorder, as I have found no suitable alternative.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 22 Researches
7.7
  • All Researches
We explored the effects of vitamin D3 on anxiety levels in rats subjected to chronic unpredictable mild stress. In our study, we used a total of 40 male Wistar rats, dividing them into five groups to analyze various treatments. These groups included a control group, a stress group, and groups receiving either vitamin D3, fluoxetine (an antidepressant), or a combination of both.

The chronic mild stress model we applied involved exposing the rats to different physical and social stressors over 21 days. Throughout the study, we monitored changes in behavior through established tests, such as the sucrose preference test and the forced swimming test, while also measuring stress hormone levels.

Our findings revealed that vitamin D3 had a protective effect against anxiety and depressive behaviors similar to fluoxetine, particularly in certain behavioral tests. In groups receiving vitamin D3, we observed lower levels of stress hormone corticosterone compared to those only exposed to stress.

Overall, we concluded that vitamin D3 can offer significant support against anxiety when faced with stress. While it was effective, we noted that the combination with fluoxetine complicates isolating the specific impact of vitamin D3 alone.
Read More
We explored the effect of vitamin D3 supplementation on anxiety levels among elderly individuals diagnosed with prediabetes. In our study, we randomly assigned participants to receive either a weekly dose of 25,000 IU of vitamin D3 or a placebo, alongside general lifestyle recommendations. Over the course of 12 months, we measured anxiety levels using standardized assessments.

At both the six-month and twelve-month marks, the participants receiving vitamin D3 reported significantly lower anxiety levels compared to those who did not receive the supplementation. Specifically, scores measuring anxiety decreased from 38.02 to 32.35 in the vitamin D group, while control participants’ scores remained much higher throughout the study.

These results indicate that vitamin D3 could be a beneficial and safe option for alleviating anxiety in an older population already facing the challenges of prediabetes. The participants who had vitamin D deficiency or insufficiency at the start of the study experienced similar improvements, emphasizing the treatment's potential across various baseline vitamin D levels.

Overall, our findings support the idea that vitamin D supplementation can effectively help mitigate anxiety symptoms in older adults, and we believe further research is warranted to better understand the mechanisms at play.
Read More
9
We explored how coal dust exposure leads to anxiety and depression-like behaviors in mice, using a pneumoconiosis model that was established after 28 days of exposure. This model allows us to closely observe the effects of environmental factors on mental health. Through treating the mice with Vitamin D3 for three months, we aimed to see if this treatment could alleviate anxiety symptoms.

Our findings were quite revealing. Vitamin D3 treatment showed a significant positive effect; it reduced signs of anxiety and depression. Specifically, we saw improvements in tests designed to measure these behaviors, along with a decrease in markers of astrocyte activation—cells in the brain that can become overactive in stressful situations. Vitamin D3 also promoted better neuron protection and enhanced the distribution of brain-derived neurotrophic factor (BDNF), a crucial element for brain health.

This study suggests that Vitamin D might serve as a useful approach for managing mood disorders resulting from environmental stressors such as coal dust. These findings also highlight the importance of further exploring Vitamin D3 as a potential treatment avenue for anxiety exacerbated by particulate matter exposure.
Read More
9
Vitamin D3 reduces anxiety in withdrawal
We examined the effects of vitamin D3 on anxiety in mice experiencing nicotine withdrawal. To conduct our research, we divided male C57/BL6 mice into four distinct groups: those receiving a vehicle, those receiving nicotine alone, those receiving vitamin D3 alone, and those receiving both nicotine and vitamin D3.

During the six-week study, the mice were given nicotine through their drinking water and vitamin D3 in their feed. When the withdrawal phase kicked in, we observed that mice treated with vitamin D3 demonstrated significantly reduced anxiety-like behaviors. This was measured using open-field tests and marble burying tests, where these mice spent more time in the central area and buried fewer marbles compared to those that did not receive vitamin D3.

Additionally, our study revealed that vitamin D3 supplementation reduced hippocampal NR2A expression, which may be linked to lowering anxiety during nicotine withdrawal. These findings suggest that vitamin D3 supplementation could be a promising dietary intervention for people dealing with anxiety related to quitting smoking.
Read More
We conducted a study to understand how high-dose vitamin D supplementation might impact anxiety levels, particularly in patients experiencing post-COVID symptoms. In our double-blind, randomized controlled trial, we enrolled 80 individuals dealing with fatigue or neuropsychiatric issues after COVID-19.

Participants were split into two groups: one received a weekly dose of 60,000 IU of vitamin D, while the other group received a placebo. Over eight weeks, we evaluated various outcomes, including anxiety levels using the Depression, Anxiety, and Stress Scale (DASS-21).

The results were encouraging for the vitamin D group. We observed significant improvements in anxiety levels, with a notable reduction reported by participants. However, other measures related to sleep quality, depression, cognitive function, and inflammatory markers did not show similar significant changes.

Importantly, we found that the vitamin D group reported no serious adverse effects, indicating that this supplementation is generally safe. These findings suggest that high-dose vitamin D may offer substantial benefits for anxiety relief in patients recovering from COVID-19, albeit with limited effects on other symptoms.
Read More

User Reviews

USERS' SCORE
Good
Based on 24 Reviews
8.4
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Anxiety reduction
97 people found this helpful
I have genetically predisposed anxiety, and after moving, it became debilitating. Following several doctors' visits, I discovered my vitamin D level was critically low. After starting 5,000 IU daily, I noted significant improvements in my anxiety attacks, which have nearly vanished, allowing me to face daily challenges again.
Read More
9
Alleviated anxiety
1 people found this helpful
I discovered that vitamin D3 is excellent for my immunity and has significantly eased my anxiety. Coupled with MCT oil, it enhances absorption.
Read More
9
Mood enhancement
1 people found this helpful
Today, I want to share my affection for vitamin D3. It strengthens bones, supports the immune and nervous systems, and significantly improves mood and anxiety levels. I take up to 2000 IU daily based on my needs and it has consistently suited me well. I will certainly reorder, as I have found no suitable alternative.
Read More
7.5
Immunity boost
I purchased this vitamin to enhance my immunity and ease anxiety. It’s in gel form and small, making it easy to take. I am optimistic about the mental improvements I will see with continued use.
Read More
9
Eases anxiety
91 people found this helpful
Having used this vitamin for two months, I feel more energised and have improved sleep. It has alleviated my anxiety, which had been troubling me.
Read More

Frequently Asked Questions

9
Eases anxiety
91 people found this helpful
Having used this vitamin for two months, I feel more energised and have improved sleep. It has alleviated my anxiety, which had been troubling me.
7.5
Enhanced energy
1 people found this helpful
Sunny vitamin! 🌞 I primarily purchase Vitamin D3 from Solgar but decided to try NOW's Vitamin D3 to improve my nervous system and strengthen my immunity post-COVID. After three months of taking one small capsule every other day, I noticed a significant decline in my chronic fatigue and anxiety. My energy levels have increased, and a recent blood test confirmed a rise in my Vitamin D levels. I now take it alongside Ester-C from Solgar for added benefits.
7.5
Improved mood
7 people found this helpful
This supplement effectively raises vitamin D levels. Within a month, I noticed improved mood, reduced anxiety, and healthy hair growth.
9
Cured anxiety
36 people found this helpful
I felt depressed and isolated for months until I started going out and taking vitamin D. It relieved my anxiety and now I feel bright and normal again.
9
Sleep improvement
1 people found this helpful
Since starting 5000 IU of vitamin D, my insomnia has remarkably improved. I now fall asleep easily and enjoy better quality sleep. Additionally, my anxiety has significantly reduced, and I feel calmer. Although it hasn’t completely resolved my cystitis, it has greatly enhanced my quality of life, allowing me to avoid sedative medications.
9
Alleviated anxiety
1 people found this helpful
I discovered that vitamin D3 is excellent for my immunity and has significantly eased my anxiety. Coupled with MCT oil, it enhances absorption.
7.5
Anxiety relief
Vitamin D3 is vital for absorbing calcium, phosphorus, and magnesium, which support bone health. It also enhances mood, alleviates anxiety and neuropsychiatric disorders, and combats insomnia. I take it with Vitamin K2 and Omega-3, which aids absorption and overall effectiveness.
We conducted a study to understand how high-dose vitamin D supplementation might impact anxiety levels, particularly in patients experiencing post-COVID symptoms. In our double-blind, randomized controlled trial, we enrolled 80 individuals dealing with fatigue or neuropsychiatric issues after COVID-19.

Participants were split into two groups: one received a weekly dose of 60,000 IU of vitamin D, while the other group received a placebo. Over eight weeks, we evaluated various outcomes, including anxiety levels using the Depression, Anxiety, and Stress Scale (DASS-21).

The results were encouraging for the vitamin D group. We observed significant improvements in anxiety levels, with a notable reduction reported by participants. However, other measures related to sleep quality, depression, cognitive function, and inflammatory markers did not show similar significant changes.

Importantly, we found that the vitamin D group reported no serious adverse effects, indicating that this supplementation is generally safe. These findings suggest that high-dose vitamin D may offer substantial benefits for anxiety relief in patients recovering from COVID-19, albeit with limited effects on other symptoms.
8
We examined how vitamin D3 levels influence anxiety and overall quality of life in older adults, specifically those aged 65 and above. In a study involving 273 participants, we analyzed vital health markers like calcium and phosphorus, alongside vitamin D3 levels, to see how these relate to mental and physical well-being.

Our findings were noteworthy: about 90% of the participants were found to be either vitamin D deficient or insufficient. We observed that those with higher levels of vitamin D3 reported significantly fewer instances of anxiety or depression. After adjusting for other factors, there was a clear connection between elevated serum vitamin D3 and reduced feelings of anxiety, indicating that maintaining adequate vitamin D levels could play a role in enhancing mental health.

Additionally, participants with better vitamin D levels also showed improved muscle strength. This leads us to believe that vitamin D not only positively influences mood but could also contribute to better physical health and mobility in older adults. Ultimately, our data suggest that by focusing on vitamin D3 supplementation, we could help improve quality of life and reduce anxiety among the elderly.
8
Vitamin D mitigates anxiety symptoms
We explored the impact of changing levels of a specific enzyme, CYP11A1, in the placenta and how it might influence anxiety and social behavior in offspring. Using a unique mouse model, we found that higher levels of this enzyme are associated with behaviors similar to those seen in autism spectrum disorders (ASD), such as reduced social interaction and increased anxiety.

Interestingly, we observed that these anxiety-related behaviors improved significantly after administering vitamin D3. Behavioral tests, including open field and elevated plus maze assessments, showed that the mice exhibited less anxiety when given this supplement.

Additionally, our study highlighted that vitamin D3 could help correct some of the hormonal imbalances linked to CYP11A1 overexpression. Higher progesterone levels and increased inflammation were noted in the affected mice, and these issues seemed to reverse with vitamin D3 treatment.

This research underscores not only the potential role of vitamin D in managing anxiety but also suggests that examining CYP11A1 levels could be important for understanding and perhaps preventing some neurodevelopmental disorders. Overall, it appears vitamin D3 may serve as a useful tool in mitigating anxiety linked to hormonal changes during development.
We evaluated the effectiveness of a treatment combining probiotics and vitamin D on patients suffering from irritable bowel syndrome, particularly focusing on those who experience anxiety. The study involved adult participants diagnosed with diarrhea-predominant IBS or mixed bowel movements, who took a daily sachet containing specific probiotic strains and vitamin D for 42 days.

At the end of the treatment period, we saw that a significant percentage of patients reported relief from their symptoms. Specifically, many in the study reported a marked decrease in the severity of their IBS symptoms, which was linked to improved quality of life and reductions in both anxiety and depression scores.

However, while vitamin D was part of the treatment regimen, it was used alongside probiotics, making it challenging to pinpoint the individual effect of vitamin D alone on anxiety. Still, the findings suggest that the combination might beneficially impact gut-related anxiety among IBS patients.
We explored the effect of vitamin D3 supplementation on anxiety levels among elderly individuals diagnosed with prediabetes. In our study, we randomly assigned participants to receive either a weekly dose of 25,000 IU of vitamin D3 or a placebo, alongside general lifestyle recommendations. Over the course of 12 months, we measured anxiety levels using standardized assessments.

At both the six-month and twelve-month marks, the participants receiving vitamin D3 reported significantly lower anxiety levels compared to those who did not receive the supplementation. Specifically, scores measuring anxiety decreased from 38.02 to 32.35 in the vitamin D group, while control participants’ scores remained much higher throughout the study.

These results indicate that vitamin D3 could be a beneficial and safe option for alleviating anxiety in an older population already facing the challenges of prediabetes. The participants who had vitamin D deficiency or insufficiency at the start of the study experienced similar improvements, emphasizing the treatment's potential across various baseline vitamin D levels.

Overall, our findings support the idea that vitamin D supplementation can effectively help mitigate anxiety symptoms in older adults, and we believe further research is warranted to better understand the mechanisms at play.
8
Vitamin D3 improves anxiety in diabetes
We investigated the potential benefits of vitamin D3 supplementation on anxiety levels in women diagnosed with type 2 diabetes and suffering from vitamin D deficiency. This research involved a randomized controlled trial with 51 participants who were divided into two groups. One group received a high dose of vitamin D3, while the other was given a placebo over a period of 16 weeks.

At the end of the study, we noticed some significant changes among the women who received vitamin D3. Their anxiety scores dropped markedly compared to the placebo group, which indicates a positive impact on their mental well-being. Additionally, there was a notable reduction in markers of inflammation, while other mood indicators, such as depression, improved as well.

Our findings suggest that vitamin D3 supplementation might be a valuable tool in improving mood and reducing anxiety for women with diabetes who are also facing vitamin D deficiency. This combination of physical health and mental well-being is crucial, especially for managing diabetes more effectively.

References

  1. Charoenporn V, Tungsukruthai P, Teacharushatakit P, Hanvivattanakul S, Sriyakul K, et al. Effects of an 8-week high-dose vitamin D supplementation on fatigue and neuropsychiatric manifestations in post-COVID syndrome: A randomized controlled trial. Psychiatry Clin Neurosci. 2024;78:595. doi:10.1111/pcn.13716
  2. Yin H, Zhang J, Chen Y, Guo J, Li Q, et al. Placenta-specific CYP11A1 overexpression lead to autism-like symptom in offspring with altered steroid hormone biosynthesis in the placenta-brain axis and rescued by vitamin D intervention. Brain Behav Immun. 2024;121:13. doi:10.1016/j.bbi.2024.07.012
  3. Domacassé D, de Rooij SR, Vrijkotte T, de Jonge A, Henrichs J. Associations Between Early-Pregnancy Vitamin D Status and Postpartum Depressive and Anxiety Symptoms. Psychosom Med. 2024;86:648. doi:10.1097/PSY.0000000000001328
  4. Wen Z, Bai L, Wu S, Chen J, Jama HA, et al. Association of serum vitamin D with anxiety in US adults: a cross-sectional study. Front Nutr. 2024;11:1371170. doi:10.3389/fnut.2024.1371170
  5. Zhao W, Zhu DM, Shen Y, Zhang Y, Chen T, et al. The protective effect of vitamin D supplementation as adjunctive therapy to antidepressants on brain structural and functional connectivity of patients with major depressive disorder: a randomized controlled trial. Psychol Med. 2024;54:2403. doi:10.1017/S0033291724000539
  6. Jouët P, Altman C, Bruley DES Varannes S, Juhel C, Henri F. Probiotics plus vitamin D in irritable bowel syndrome: a prospective multicentric non-interventional study. Minerva Gastroenterol (Torino). 2024;70:332. doi:10.23736/S2724-5985.24.03581-2
  7. Renteria KM, Constantine E, Teoh CM, Cooper A, Lozano N, et al. Combination of vitamin D and fructooligosaccharides upregulates colonic vitamin D receptor in C57BL/6J mice and affects anxiety-related behavior in a sex-specific manner. Nutr Res. 2024;125:16. doi:10.1016/j.nutres.2024.02.003
  8. Gammoh O, Ibrahim A, Yehya A, Alqudah A, Qnais E, et al. Exploring the Roles of Vitamins C and D and Etifoxine in Combination with Citalopram in Depression/Anxiety Model: A Focus on ICAM-1, SIRT1 and Nitric Oxide. Int J Mol Sci. 2024;25. doi:10.3390/ijms25041960
  9. Gizzi G, Fiorani F, Cataldi S, Mandarano M, Delvecchio E, et al. Exploring the Influence of / Polymorphic Variants on Adolescent Mental Health and Response to Vitamin D Supplementation in Embryonic Hippocampal Cell Lines. Genes (Basel). 2024;15. doi:10.3390/genes15070913
  10. Al-Ramadhan FR, Abulmeaty MMA, Alquraishi M, Razak S, Alhussain MH. Effect of Vitamin D3 on Depressive Behaviors of Rats Exposed to Chronic Unpredictable Mild Stress. Biomedicines. 2023;11. doi:10.3390/biomedicines11082112
  11. Lapmanee S, Bhubhanil S, Sriwong S, Yuajit C, Wongchitrat P, et al. Oral calcium and vitamin D supplements differentially alter exploratory, anxiety-like behaviors and memory in male rats. PLoS One. 2023;18:e0290106. doi:10.1371/journal.pone.0290106
  12. Pereira ADS, Miron VV, Castro MFV, Bottari NB, Assmann CE, et al. Neuromodulatory effect of the combination of metformin and vitamin D triggered by purinergic signaling in type 1 diabetes induced-rats. Mol Cell Endocrinol. 2023;563:111852. doi:10.1016/j.mce.2023.111852
  13. Zaromytidou E, Koufakis T, Dimakopoulos G, Drivakou D, Konstantinidou S, et al. Vitamin D Alleviates Anxiety and Depression in Elderly People with Prediabetes: A Randomized Controlled Study. Metabolites. 2022;12. doi:10.3390/metabo12100884
  14. Tokarchuk A, Abenavoli L, Kobyliak N, Khomenko M, Revun M, et al. Nutrition program, physical activity and gut microbiota modulation: a randomized controlled trial to promote a healthy lifestyle in students with vitamin D3 deficiency. Minerva Med. 2022;113:683. doi:10.23736/S0026-4806.22.07992-7
  15. Zou Y, Mu M, Zhang S, Li C, Tian K, et al. Vitamin D3 suppresses astrocyte activation and ameliorates coal dust-induced mood disorders in mice. J Affect Disord. 2022;303:138. doi:10.1016/j.jad.2022.02.026
  16. Guzek D, Kołota A, Lachowicz K, Skolmowska D, Stachoń M, et al. Influence of Vitamin D Supplementation on Mental Health in Diabetic Patients: A Systematic Review. Nutrients. 2021;13. doi:10.3390/nu13113678
  17. Wu B, Tao X, Liu C, Li H, Jiang T, et al. Vitamin D3 reduces hippocampal NR2A and anxiety in nicotine withdrawal mice. Transl Neurosci. 2021;12:273. doi:10.1515/tnsci-2020-0166
  18. Tsoukalas D, Zlatian O, Mitroi M, Renieri E, Tsatsakis A, et al. A Novel Nutraceutical Formulation Can Improve Motor Activity and Decrease the Stress Level in a Murine Model of Middle-Age Animals. J Clin Med. 2021;10. doi:10.3390/jcm10040624
  19. Lang F, Ma K, Leibrock CB. 1,25(OH)D in Brain Function and Neuropsychiatric Disease. Neurosignals. 2019;27:40. doi:10.33594/000000182
  20. Verde Z, Giaquinta A, Sainz CM, Ondina MD, Araque AF. Bone Mineral Metabolism Status, Quality of Life, and Muscle Strength in Older People. Nutrients. 2019;11. doi:10.3390/nu11112748
  21. Fedotova JO. Vitamin D treatment differentially affects anxiety-like behavior in the old ovariectomized female rats and old ovariectomized female rats treated with low dose of 17β-estradiol. BMC Med Genet. 2019;20:49. doi:10.1186/s12881-019-0774-2
  22. Fazelian S, Amani R, Paknahad Z, Kheiri S, Khajehali L. Effect of Vitamin D Supplement on Mood Status and Inflammation in Vitamin D Deficient Type 2 Diabetic Women with Anxiety: A Randomized Clinical Trial. Int J Prev Med. 2019;10:17. doi:10.4103/ijpvm.IJPVM_174_18
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