Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 32 Researches
7.1
USERS' SCORE
Good
Based on 11 Reviews
8.7
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 depressive symptoms
We conducted a double-blind randomized clinical trial to explore the effects of vitamin D3 supplementation on depression. Our study involved 56 adults with mild to moderate depression, who were assigned to either a vitamin D group or a placebo group. Over the course of eight weeks, the vitamin D group received a high dose of 50,000 IU cholecalciferol every two weeks, while the control group received a placebo.

After the treatment period, we observed that the participants who received the vitamin D3 experienced a significant reduction in depression severity, as measured by the Beck Depression Inventory-II. Interestingly, this improvement in mood occurred independently of any changes in inflammatory biomarkers like IL-1β, IL-6, and hs-CRP, which we also assessed during the study.

This indicates that while vitamin D supplementation may positively impact depressive symptoms, its effects are not directly linked to the inflammatory markers we evaluated. Our findings suggest that vitamin D3 could be a helpful addition to depression treatment strategies, particularly in individuals with low vitamin D levels.
Read More
9.5
Cholecalciferol eases depression symptoms
We conducted a thorough exploration of how vitamin D3, or cholecalciferol, affects depressive symptoms in patients with type 2 diabetes mellitus (T2DM). This double-blind, randomized, placebo-controlled trial involved 70 participants who experienced both T2DM and depression. For 12 weeks, one group received a daily dose of 4000 IU of cholecalciferol, while the other group received a placebo.

By assessing depression levels using the Beck Depression Inventory-II before and after the study, we observed notable results. Not only did the cholecalciferol group report a significant reduction in depression scores, but we found a marked increase in C-peptide levels as well, which may be linked to improvements in mood.

However, we did not find significant changes in serotonin and neurotrophin-3 levels between the two groups, leaving us with some unanswered questions about these mechanisms. Overall, our findings suggest that supplementing with cholecalciferol could potentially relieve mild to moderate depressive symptoms for people managing T2DM, especially through enhanced C-peptide levels.
Read More
9
Vitamin D supports depression management
We conducted a double-blind, randomized, placebo-controlled trial to explore how cholecalciferol, a form of vitamin D, influences depressive symptoms in individuals suffering from type 2 diabetes mellitus (T2DM). This clinical study lasted for 12 weeks and involved participants who were either given a daily dose of 4000 IU of cholecalciferol or a placebo.

Throughout the study, we measured various factors, including the participants’ depression levels using the Beck Depression Inventory-II, as well as important biological markers like C-peptide, serotonin, and neurotrophin-3.

Our findings showed a significant reduction in depression scores among those taking cholecalciferol compared to the placebo group. Additionally, we observed a notable increase in C-peptide levels, which may indicate some metabolic benefits, although no significant changes were found in serotonin and neurotrophin-3 levels.

Ultimately, while cholecalciferol appears to alleviate mild to moderate depressive symptoms in T2DM patients through improved C-peptide levels, its impact on serotonin and neurotrophin-3 remains unclear. This highlights vitamin D as a potentially helpful option for managing depression alongside diabetes.
Read More

Most Useful Reviews

9.5
Enhanced immunity
The most important vitamin for the body is vitamin D3, especially for those with immune issues, joint pain, and depression. As someone with rheumatoid arthritis, I find it crucial. It boosts immunity and alleviates psychological distress. It’s more effective than cortisone. Take it with a fatty meal and alongside vitamin K2 for better absorption. The capsules are tasteless, well-packaged, and a good value. I hope this helps you! Always be grateful for your condition.
Read More
9.5
Reduced symptoms
I suffered from hair loss, joint pain, fatigue, and depression due to severe vitamin D deficiency. After using this product, I noticed a significant reduction in hair loss, and my depressive symptoms disappeared. Joint pain and exhaustion have also lessened. The packaging is great, and I only need one pill weekly for two months.
Read More
9.5
Psychological improvement
My experience with this vitamin D has been remarkable. It helped my psychological state significantly as I realised my depression stemmed from a deficiency. I recommend taking it as instructed, starting with one pill weekly. I've noticed the effects from the first month, and it aids in building bones as well.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 32 Researches
7.1
  • All Researches
9.5
Cholecalciferol eases depression symptoms
We conducted a thorough exploration of how vitamin D3, or cholecalciferol, affects depressive symptoms in patients with type 2 diabetes mellitus (T2DM). This double-blind, randomized, placebo-controlled trial involved 70 participants who experienced both T2DM and depression. For 12 weeks, one group received a daily dose of 4000 IU of cholecalciferol, while the other group received a placebo.

By assessing depression levels using the Beck Depression Inventory-II before and after the study, we observed notable results. Not only did the cholecalciferol group report a significant reduction in depression scores, but we found a marked increase in C-peptide levels as well, which may be linked to improvements in mood.

However, we did not find significant changes in serotonin and neurotrophin-3 levels between the two groups, leaving us with some unanswered questions about these mechanisms. Overall, our findings suggest that supplementing with cholecalciferol could potentially relieve mild to moderate depressive symptoms for people managing T2DM, especially through enhanced C-peptide levels.
Read More
9
Vitamin D and Magnesium Aid Depression
We conducted a study to evaluate whether supplementing with magnesium and vitamin D could help alleviate mild-to-moderate depressive symptoms in individuals suffering from long-COVID. The clinical trial included 60 participants, aged 52.8 years on average, who had been diagnosed with hypomagnesemia, vitamin D deficiency, and mild-to-moderate depression.

Participants were divided into two groups: one received magnesium chloride along with vitamin D, while the other group only received vitamin D. Over four months, we monitored the effectiveness of these supplements in reducing depressive symptoms, using the Beck Depression Inventory (BDI) scale to measure changes.

Our results revealed a significant reduction in depressive symptoms for those taking both magnesium and vitamin D, with 73.2% of them reaching a positive outcome score on the BDI. In contrast, the control group, which received only vitamin D, showed a less dramatic improvement, suggesting that the combined treatment may offer more benefits for those struggling with depression related to long-COVID.

While both groups experienced some improvement, our findings indicate that magnesium plus vitamin D supplementation presents a promising option for individuals coping with depression in the wake of COVID-19.
Read More
9
Vitamin D supports depression management
We conducted a double-blind, randomized, placebo-controlled trial to explore how cholecalciferol, a form of vitamin D, influences depressive symptoms in individuals suffering from type 2 diabetes mellitus (T2DM). This clinical study lasted for 12 weeks and involved participants who were either given a daily dose of 4000 IU of cholecalciferol or a placebo.

Throughout the study, we measured various factors, including the participants’ depression levels using the Beck Depression Inventory-II, as well as important biological markers like C-peptide, serotonin, and neurotrophin-3.

Our findings showed a significant reduction in depression scores among those taking cholecalciferol compared to the placebo group. Additionally, we observed a notable increase in C-peptide levels, which may indicate some metabolic benefits, although no significant changes were found in serotonin and neurotrophin-3 levels.

Ultimately, while cholecalciferol appears to alleviate mild to moderate depressive symptoms in T2DM patients through improved C-peptide levels, its impact on serotonin and neurotrophin-3 remains unclear. This highlights vitamin D as a potentially helpful option for managing depression alongside diabetes.
Read More
9
Calcitriol impacts depression positively
We explored how calcitriol, the active form of vitamin D3, impacts depression linked to neuroinflammation. Using a well-structured study with control and experimental groups, we examined the effects of calcitriol on mice exposed to lipopolysaccharide (LPS), a substance that induces depressive-like behavior and neuroinflammation.

During our experiments, we found that calcitriol not only reduced the inflammatory response in brain cells but also improved behavioral symptoms associated with depression. In particular, it lowered the levels of inflammation-related molecules while promoting anti-inflammatory ones in the brain's hippocampus, an area important for mood and memory.

We observed that calcitriol helped alleviate some of the negative behavioral effects triggered by LPS. The treatment also appeared to prevent the activation of microglia, the brain's immune cells, by interfering with a specific signaling pathway involved in inflammation.

Overall, our findings suggest that vitamin D3 could offer promising benefits as a treatment for depression by tackling neuroinflammation and protecting neuronal health.
Read More
We looked at how vitamin D3 could help combat depression, especially in the context of chronic stress. The study involved 40 male Wistar rats, divided into different groups to compare the effects of vitamin D3, the antidepressant fluoxetine, and a combination of both.

The rats underwent 21 days of mild but unpredictable stress, simulating conditions often linked to depression. To measure the effects, we conducted several behavioral tests and collected blood samples to assess hormonal changes.

Results showed that vitamin D3 had a positive impact similar to fluoxetine on the rats' depressive behaviors. Specifically, we found that vitamin D3 improved results in key behavioral tests, suggesting it can help protect against stress-induced anxiety and depression.

Notably, the levels of corticosterone, a stress hormone, were lower in rats that received vitamin D3, indicating a protective effect. Overall, this study emphasizes the potential of vitamin D3 in alleviating depressive symptoms resulting from chronic stress.
Read More

User Reviews

USERS' SCORE
Good
Based on 11 Reviews
8.7
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Enhanced immunity
The most important vitamin for the body is vitamin D3, especially for those with immune issues, joint pain, and depression. As someone with rheumatoid arthritis, I find it crucial. It boosts immunity and alleviates psychological distress. It’s more effective than cortisone. Take it with a fatty meal and alongside vitamin K2 for better absorption. The capsules are tasteless, well-packaged, and a good value. I hope this helps you! Always be grateful for your condition.
Read More
9.5
Reduced symptoms
I suffered from hair loss, joint pain, fatigue, and depression due to severe vitamin D deficiency. After using this product, I noticed a significant reduction in hair loss, and my depressive symptoms disappeared. Joint pain and exhaustion have also lessened. The packaging is great, and I only need one pill weekly for two months.
Read More
9.5
Psychological improvement
My experience with this vitamin D has been remarkable. It helped my psychological state significantly as I realised my depression stemmed from a deficiency. I recommend taking it as instructed, starting with one pill weekly. I've noticed the effects from the first month, and it aids in building bones as well.
Read More
9.5
Increased energy
This product has significantly improved my vitamin D levels. I consulted a doctor who advised me to continue using it, and it has been effective. My lethargy and depression have diminished, and I feel much more energetic now. I highly recommend it to others!
Read More
8.3
Pain relief
This vitamin D supplement is beneficial for anyone with a deficiency, especially for alleviating bone pain and depression. I highly recommend it for improved well-being.
Read More

Frequently Asked Questions

Depression is a common and serious mental health condition characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities that were once enjoyable. It can affect anyone, regardless of age, gender, or background, and it goes beyond just feeling down; it can interfere significantly with daily life, impacting relationships, work performance, and overall well-being. Symptoms of depression may include changes in appetite or weight, sleep disturbances, fatigue, difficulty concentrating, and thoughts of worthlessness or suicide.

The causes of depression are complex and may involve a combination of genetic, biological, environmental, and psychological factors. While it's a serious condition that can be debilitating, the good news is that it is treatable. Various treatment options are available, including therapy, medication, lifestyle changes, and support groups. If you or someone you know is struggling with depression, seeking help from a healthcare professional is a crucial step toward recovery.

Vitamin D is a fat-soluble vitamin that's essential for maintaining healthy bones and teeth, supporting immune system function, and facilitating normal cell growth and development. It plays a crucial role in calcium absorption in the gut, which is vital for bone health. Unlike most vitamins, our bodies can produce Vitamin D when exposed to sunlight, specifically UVB rays, which is why it’s often referred to as the "sunshine vitamin." However, depending on your geographical location, lifestyle, and skin type, getting sufficient Vitamin D from the sun alone can be challenging, particularly during the winter months.

In addition to sunlight, Vitamin D can be obtained from certain foods such as fatty fish (like salmon and mackerel), fish liver oils, and fortified foods like milk and cereals. Some individuals may also consider supplements, especially if they're at risk for deficiency. Insufficient vitamin D levels are linked to various health issues, including rickets in children, osteomalacia in adults, and even an increased risk of chronic diseases. Regularly checking your vitamin D levels and consulting with a healthcare professional can help ensure you're meeting your needs for optimal health.

Research has suggested a possible link between vitamin D levels and mood regulation, including its potential role in alleviating symptoms of depression. Some studies indicate that individuals with low levels of vitamin D may be more susceptible to depressive symptoms, and supplementation may provide some relief. This is particularly relevant in regions with limited sunlight exposure, where vitamin D synthesis from sunlight is reduced. However, while some individuals may experience improved mood with vitamin D supplementation, results can vary significantly from person to person.

It's important to note that vitamin D is not a standalone treatment for depression and should not replace prescribed medication or therapy. If you're considering adding vitamin D supplements to your regimen, it's best to consult with a healthcare professional who can evaluate your specific situation and recommend appropriate dosages along with potential lifestyle changes. Overall, while vitamin D may contribute to mood enhancement, it's just one piece of a larger puzzle when addressing mental health concerns.

Based on user reviews, it appears that the timeline for noticing improvements in depression symptoms after starting a vitamin D supplement can vary, but many users report positive changes within the first month of use. For instance, one reviewer noted that they experienced significant improvements in their psychological state starting just after one month of taking the supplement (Read Review). Another user echoed a similar experience, indicating noticeable relief from depressive symptoms within less than a month of supplementation (Read Review). Additionally, it is worth mentioning that a few users noted that they only began to feel better after a couple of months of consistent use (Read Review).

Overall, while some users experience improvements in their depressive symptoms as quickly as a few weeks, most seem to feel the full benefits after several weeks to a couple of months of regular use. As always, it is advisable to consult with a healthcare professional when addressing concerns regarding mental health.

The scientific research surrounding the use of vitamin D as a supplement for alleviating depression is growing and shows promising potential. Multiple studies indicate a correlation between adequate vitamin D levels and a lower risk of depression, especially in specific populations such as older adults, pregnant women, and those with chronic conditions like CKD (Chronic Kidney Disease) and diabetes. For instance, one study found that individuals with higher levels of vitamin D had a significantly lower risk of depression, particularly when combined with physical activity, while another indicated that vitamin D supplementation may alleviate depressive symptoms in patients with type 2 diabetes [2]. Moreover, a systematic review involving 31 trials concluded that increased vitamin D intake is generally associated with a decrease in depressive symptoms, especially at higher doses [18].

However, results are nuanced, as not all studies have demonstrated a clear benefit. Some research suggests that the positive effects of vitamin D on mood may not be uniform across all individuals, and factors such as dose, duration of supplementation, and pre-existing medical conditions may influence outcomes. For example, a large trial found no significant difference in depression scores between those who received vitamin D and a placebo, although sub-analyses did show a slight benefit in individuals already using antidepressants [31]. As such, while there is substantial evidence supporting vitamin D's role in mood enhancement, more targeted research is required to fully understand its efficacy and how it might best be utilized in depression treatment.

Based on user reviews, many individuals have reported significant improvements in their depressive symptoms after starting a vitamin D supplement. For example, one user with rheumatoid arthritis stated that the supplement not only boosted their immunity but also alleviated psychological distress, suggesting a notable impact on mood (Read Review). Another reviewer experienced a complete disappearance of depressive symptoms after addressing their severe vitamin D deficiency, alongside reductions in hair loss and joint pain (Read Review).

Additionally, several users mentioned feeling improvements in their mental states shortly after starting the supplement. One user reported a marked enhancement in their psychological condition just a month into the regimen (Read Review). Similarly, another review highlighted a decrease in lethargy and depressive feelings after consistent use (Read Review). In general, while many users experienced prompt relief, individual results may vary and some noted significant healing over a more extended period (Read Review). Just a reminder, it's wise to consult healthcare professionals before beginning any supplementation.

Based on user reviews, many individuals have successfully combined vitamin D supplements with other supplements or dietary strategies to enhance their overall effectiveness in managing depression. For instance, one user highlighted the importance of taking vitamin D3 alongside vitamin K2 to improve absorption and efficacy, particularly for alleviating psychological distress (Read Review). This suggestion aligns with a broader sentiment among users who seek to optimize their supplement regime for better mental health outcomes.

Additionally, some users indicated the benefits of taking vitamin D as part of a holistic approach to their health, which could include dietary adjustments, ensuring adequate sun exposure, and monitoring other nutrient levels like vitamin B. For example, one reviewer mentioned their cognitive issues improved after addressing low levels of both vitamin D and B, suggesting a multifaceted approach to managing their depressive symptoms (Read Review). Overall, while many users have seen improvements solely from vitamin D supplementation, combining it with other nutrients and lifestyle changes may further enhance its effects on depression.

Research suggests that an optimal dose of Vitamin D for treating depression is around 8000 IU per day. A systematic review of various studies indicated that this higher dosage significantly reduced depressive symptoms, especially for those with pre-existing issues. In one study involving nearly 24,200 participants, a notable improvement in mood was observed with this increase in intake [18]. Additionally, participants experiencing symptoms of depression demonstrated more substantial benefits from Vitamin D supplementation compared to those without prior diagnoses.

Moreover, another study found that a dose of 4000 IU of cholecalciferol was effective in alleviating depressive symptoms in individuals with type 2 diabetes, further supporting the notion that higher doses may provide therapeutic advantages [17]. It's important to note, however, that while these findings offer promising insight into Vitamin D's role in managing depression, ongoing research is essential to validate these dosages and fully understand their impacts.

9.5
Psychological improvement
My experience with this vitamin D has been remarkable. It helped my psychological state significantly as I realised my depression stemmed from a deficiency. I recommend taking it as instructed, starting with one pill weekly. I've noticed the effects from the first month, and it aids in building bones as well.
9.5
Cognitive recovery
I love shopping with you, especially with delivery to Brazil. I’ve been taking this for less than a month and already feel better. My vitamin D and B levels were dangerously low, leading to cognitive issues and severe fatigue, contributing to my depression. Thankfully, I feel I’m getting back to normal and highly recommend this product!
9.5
Reduced symptoms
I suffered from hair loss, joint pain, fatigue, and depression due to severe vitamin D deficiency. After using this product, I noticed a significant reduction in hair loss, and my depressive symptoms disappeared. Joint pain and exhaustion have also lessened. The packaging is great, and I only need one pill weekly for two months.
9.5
Enhanced immunity
The most important vitamin for the body is vitamin D3, especially for those with immune issues, joint pain, and depression. As someone with rheumatoid arthritis, I find it crucial. It boosts immunity and alleviates psychological distress. It’s more effective than cortisone. Take it with a fatty meal and alongside vitamin K2 for better absorption. The capsules are tasteless, well-packaged, and a good value. I hope this helps you! Always be grateful for your condition.
9.5
Increased energy
This product has significantly improved my vitamin D levels. I consulted a doctor who advised me to continue using it, and it has been effective. My lethargy and depression have diminished, and I feel much more energetic now. I highly recommend it to others!
6.8
Daily necessity
I recommend this vitamin D3 product to everyone, especially during winter. It’s been effective in addressing my depression linked to vitamin deficiency. I encourage my family to take it regularly for better health outcomes.
8
Vitamin D and activity reduce depression
We explored the connection between 25-hydroxyvitamin D levels, physical activity, and the risk of developing depression in older adults. Using data from a large, longitudinal study called the English Longitudinal Study of Ageing, we focused on cognitively healthy individuals aged 50 and older.

Our findings showed that higher levels of 25(OH)D were associated with a significantly lower risk of depression. When we combined high levels of vitamin D with regular physical activity, the protective effect against depression was even greater, especially in those aged 65 and older.

Specifically, we noted that individuals with high levels of vitamin D and who engaged in physical activity had a 23.1% lower chance of developing depression. This combination not only highlights the importance of maintaining adequate vitamin D levels but also emphasizes incorporating physical activity into our daily routines as essential for mental health.

Ultimately, our results underscore the potential benefits of vitamin D supplementation and regular physical activity as strategies for preventing depression, particularly in older adults.
7
Vitamin D3 may alleviate depression
We explored the impact of vitamin D3 supplementation on depression through a systematic review of randomized controlled trials. Our analysis included data from 31 studies involving nearly 24,200 participants.

The findings revealed that taking an additional 1000 IU of vitamin D daily can lead to a modest reduction in depressive symptoms. Specifically, those with existing depressive symptoms experienced a more significant improvement. Notably, at higher doses of 8000 IU per day, the reduction was even more pronounced.

Interestingly, the benefits were more evident in the short term, especially during trials that lasted between 8 and 24 weeks. After this period, the effects seemed to diminish, suggesting the need for ongoing supplementation to maintain benefits.

It's important to mention that vitamin D3 did not show any significant effects on anxiety symptoms. While the results indicate a potential role for vitamin D3 in reducing depression, further high-quality research is necessary to fully understand its impact, particularly regarding anxiety.
We investigated whether vitamin D supplementation could help reduce depressive symptoms and lower the likelihood of needing antidepressants in older Australian adults. The D-Health Trial, which involved over 21,000 participants aged between 60 and 84, provided a solid platform for our research. This trial was carefully designed, using a randomized, double-blind, placebo-controlled approach, which is the gold standard in clinical research.

Participants answered the Patient Health Questionnaire (PHQ-9) to measure their depressive symptoms multiple times over five years, while national prescribing records allowed us to track the use of antidepressants.

Our findings revealed that monthly vitamin D supplementation did not show any significant benefits for alleviating depression overall. The average difference in PHQ-9 scores between the vitamin D and placebo groups was negligible. Moreover, the incidence of antidepressant use in both groups remained quite similar.

However, when we looked closer, some interesting trends emerged. For individuals already on antidepressants at the start of the study, vitamin D did seem to improve their depression scores slightly. Additionally, participants with low vitamin D levels at the outset showed a decrease in the risk of starting antidepressants after supplementation. Unfortunately, those with sufficient vitamin D levels saw an increased risk of antidepressant use.

Thus, while we didn’t find strong support for vitamin D's effectiveness against depression in general, our subgroup analyses suggest there might be some nuances worth exploring further.
9.5
Cholecalciferol eases depression symptoms
We conducted a thorough exploration of how vitamin D3, or cholecalciferol, affects depressive symptoms in patients with type 2 diabetes mellitus (T2DM). This double-blind, randomized, placebo-controlled trial involved 70 participants who experienced both T2DM and depression. For 12 weeks, one group received a daily dose of 4000 IU of cholecalciferol, while the other group received a placebo.

By assessing depression levels using the Beck Depression Inventory-II before and after the study, we observed notable results. Not only did the cholecalciferol group report a significant reduction in depression scores, but we found a marked increase in C-peptide levels as well, which may be linked to improvements in mood.

However, we did not find significant changes in serotonin and neurotrophin-3 levels between the two groups, leaving us with some unanswered questions about these mechanisms. Overall, our findings suggest that supplementing with cholecalciferol could potentially relieve mild to moderate depressive symptoms for people managing T2DM, especially through enhanced C-peptide levels.

References

  1. Askarpour M, Hejazi N, Jahromi BN, Eskandari MH, Famouri M, et al. Effects of a Novel Fortified Dairy Product on the Psychological Status and Sleep Quality of Patients with Polycystic Ovary Syndrome: A Double-Blind Randomized Controlled Trial. Prev Nutr Food Sci. 2025;30:37. doi:10.3746/pnf.2025.30.1.37
  2. Xu X, Jing F, Zhong H, Lin L, Gao T, et al. Synergistic impact of 25-hydroxyvitamin D and physical activity on incident depression: Evidence from prospective cohorts and genome-wide data. J Affect Disord. 2025. doi:10.1016/j.jad.2025.03.004
  3. Bostan ZZ, Şare Bulut M, Gezmen Karadağ M. Can Vıtamın D Reduce the Need for SSRI by Modulatıng Serotonın Synthesıs?: A Revıew of Recent Lıterature. Curr Nutr Rep. 2025;14:39. doi:10.1007/s13668-025-00630-7
  4. Yu C, Liu K, Yao W, Tang D. Associations between the intake of single and multiple dietary vitamins and depression risk among populations with chronic kidney disease. Front Nutr. 2025;12:1492829. doi:10.3389/fnut.2025.1492829
  5. Chen IW, Wang WT, Lai YC, Chang YJ, Lin YT, et al. Association between vitamin D deficiency and major depression in patients with chronic kidney disease: a cohort study. Front Nutr. 2025;12:1540633. doi:10.3389/fnut.2025.1540633
  6. Raza ML, Hassan ST, Jamil S, Fatima W, Fatima M. Nutritional interventions in depression: The role of vitamin D and omega-3 fatty acids in neuropsychiatric health. Clin Nutr. 2025;45:270. doi:10.1016/j.clnu.2025.01.009
  7. Rodríguez-Morán M, Guerrero-Romero F, Barragán-Zuñiga J, Gamboa-Gómez CI, Weyman-Vela Y, et al. Combined oral supplementation with magnesium plus vitamin D alleviates mild to moderate depressive symptoms related to long-COVID: an open-label randomized, controlled clinical trial. Magnes Res. 2024;37:49. doi:10.1684/mrh.2024.0535
  8. Yuan Y, Qu L, Sun Q, He P, Zhou X. The Association between Vitamin D Deficiency and Perinatal Depression: A Systematic Review and Meta-Analysis. Alpha Psychiatry. 2024;25:669. doi:10.5152/alphapsychiatry.2024.241553
  9. Jiang R, Lu M, Hua Y, Hong Z. Association between serum vitamin D and depression among non-alcoholic fatty liver disease. Asia Pac J Clin Nutr. 2025;34:112. doi:10.6133/apjcn.202502_34(1).0011
  10. Putranto R, Setiati S, Nasrun MW, Witjaksono F, Immanuel S, et al. Effects of cholecalciferol supplementation on depressive symptoms, C-peptide, serotonin, and neurotrophin-3 in type 2 diabetes mellitus: A double-blind, randomized, placebo-controlled trial. Narra J. 2024;4:e1342. doi:10.52225/narra.v4i3.1342
  11. Ghaemi S, Zeraattalab-Motlagh S, Jayedi A, Shab-Bidar S. The effect of vitamin D supplementation on depression: a systematic review and dose-response meta-analysis of randomized controlled trials. Psychol Med. 2024;54:1. doi:10.1017/S0033291724001697
  12. Carnegie RE, Zheng J, Borges MC, Jones HJ, Wade KH, et al. Micronutrients and Major Depression: A Mendelian Randomisation Study. Nutrients. 2024;16. doi:10.3390/nu16213690
  13. Centeno LOL, Fernandez MDS, Muniz FWMG, Longoni A, de Assis AM. Is Serum Vitamin D Associated with Depression or Anxiety in Ante- and Postnatal Adult Women? A Systematic Review with Meta-Analysis. Nutrients. 2024;16. doi:10.3390/nu16213648
  14. Karnopp TE, Chapacais GF, Gasparini ML, Dos Santos NG, Freitas VDS, et al. The role of vitamin D: a promising pathway to combat neuropsychiatric lupus disorders. Clin Exp Immunol. 2025;219. doi:10.1093/cei/uxae099
  15. Santos HGD, Longoni A, Trettim JP, Lemes IT, Menchaca JC, et al. Deficiency of vitamin D is associated with antenatal depression: A cross-sectional study. Trends Psychiatry Psychother. 2024. doi:10.47626/2237-6089-2024-0908
  16. Wu J, Jiang Y, Liang J, Zhou Y, Chai S, et al. Bidirectional causality between micronutrients and mental illness: Mendelian randomization studies. J Affect Disord. 2025;369:718. doi:10.1016/j.jad.2024.09.047
  17. Putranto R, Setiati S, Nasrun MW, Witjaksono F, Immanuel S, et al. Effects of cholecalciferol supplementation on depressive symptoms, C-peptide, serotonin, and neurotrophin-3 in type 2 diabetes mellitus: A double-blind, randomized, placebo-controlled trial. Narra J. 2024;4:e1342. doi:10.52225/narra.v4i3.1342
  18. Ghaemi S, Zeraattalab-Motlagh S, Jayedi A, Shab-Bidar S. The effect of vitamin D supplementation on depression: a systematic review and dose-response meta-analysis of randomized controlled trials. Psychol Med. 2024;54:1. doi:10.1017/S0033291724001697
  19. Alimohammadi-Kamalabadi M, Ziaei S, Hasani M, Mohammadi S, Mehrbod M, et al. Does vitamin D supplementation impact serotonin levels? A systematic review and meta-analysis. Health Sci Rep. 2024;7:e2276. doi:10.1002/hsr2.2276
  20. Satyanarayana PT, Suryanarayana R, Yesupatham ST, Varadapuram Ramalingareddy SR, Gopalli NA. Does Vitamin D3 Supplementation Improve Depression Scores among Rural Adolescents? A Randomized Controlled Trial. Nutrients. 2024;16. doi:10.3390/nu16121828
  21. 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
  22. Wang C, Cui C, Xie X, Chen B, Feng L, et al. Calcitriol attenuates lipopolysaccharide-induced neuroinflammation and depressive-like behaviors by suppressing the P2X7R/NLRP3/caspase-1 pathway. Psychopharmacology (Berl). 2024;241:1329. doi:10.1007/s00213-024-06565-1
  23. Ceolin G, Moreira JD, Quialheiro A, Silva AAM, d'Orsi E, et al. Vitamin D serum concentration is prospectively associated with depressive symptoms in the EpiFloripa Aging Cohort Study: a structural equation modeling approach. Braz J Psychiatry. 2024;46:e20233153. doi:10.47626/1516-4446-2023-3153
  24. Sirasangi MI, Roohi TF, Krishna KL, Kinattingal N, Wani SUD, et al. Dietary Co-supplements attenuate the chronic unpredictable mild stress-induced depression in mice. Behav Brain Res. 2024;459:114788. doi:10.1016/j.bbr.2023.114788
  25. Evanchuk JL, Kozyrskyj A, Vaghef-Mehrabani E, Lamers Y, Giesbrecht GF, et al. Maternal Iron and Vitamin D Status during the Second Trimester Is Associated with Third Trimester Depression Symptoms among Pregnant Participants in the APrON Cohort. J Nutr. 2024;154:174. doi:10.1016/j.tjnut.2023.10.029
  26. 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
  27. Vyas CM, Mischoulon D, Chang G, Reynolds CF, Cook NR, et al. Relation of serum BDNF to major depression and exploration of mechanistic roles of serum BDNF in a study of vitamin D3 and omega-3 supplements for late-life depression prevention. J Psychiatr Res. 2023;163:357. doi:10.1016/j.jpsychires.2023.05.069
  28. Sandboge S, Räikkönen K, Lahti-Pulkkinen M, Hauta-Alus H, Holmlund-Suila E, et al. Effect of Vitamin D3 Supplementation in the First 2 Years of Life on Psychiatric Symptoms at Ages 6 to 8 Years: A Randomized Clinical Trial. JAMA Netw Open. 2023;6:e2314319. doi:10.1001/jamanetworkopen.2023.14319
  29. Lisakovska O, Labudzynskyi D, Khomenko A, Isaev D, Savotchenko A, et al. Brain vitamin D-auto/paracrine system in relation to structural, neurophysiological, and behavioral disturbances associated with glucocorticoid-induced neurotoxicity. Front Cell Neurosci. 2023;17:1133400. doi:10.3389/fncel.2023.1133400
  30. Tarikere Satyanarayana P, Suryanarayana R, Theophilus Yesupatham S, Reddy S, Reddy N. Is Sunshine Vitamin Related to Adolescent Depression? A Cross-Sectional Study of Vitamin D Status and Depression Among Rural Adolescents. Cureus. 2023;15:e34639. doi:10.7759/cureus.34639
  31. Rahman ST, Waterhouse M, Romero BD, Baxter C, English DR, et al. Effect of vitamin D supplementation on depression in older Australian adults. Int J Geriatr Psychiatry. 2023;38:e5847. doi:10.1002/gps.5847
  32. Kaviani M, Nikooyeh B, Etesam F, Behnagh SJ, Kangarani HM, et al. Effects of vitamin D supplementation on depression and some selected pro-inflammatory biomarkers: a double-blind randomized clinical trial. BMC Psychiatry. 2022;22:694. doi:10.1186/s12888-022-04305-3
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