Overview

SCIENTIFIC SCORE
Questionable
Based on 28 Researches
6.9
USERS' SCORE
Good
Based on 4 Reviews
8.4
Supplement Facts
Serving Size: 1 Lozenge
Amount Per Serving
%DV
Folate
167 mcg DFE(100 mcg folic acid)
42%
Vitamin B-12 (as Cyanocobalamin)
1 mg (1,000 mcg)
41,667%

Top Medical Research Studies

8
Vitamin B affects depression risk
We explored the connection between vitamin B levels and depression in older adults over four years. Our study followed nearly 3,850 participants and found that those with low blood levels of vitamin B were significantly more likely to report depressive symptoms. Specifically, individuals with low vitamin B had a 51% higher chance of developing depression compared to those with adequate levels.

However, we did not find any significant link between folate levels and depression. These insights suggest that boosting vitamin B might be a simple, cost-effective way to help improve mental health in older adults.
Read More
2
Vitamin B12 shows no benefit for depression
We assessed the effect of vitamin B12 supplementation on depressive symptoms by reviewing several randomized controlled trials (RCTs). Our analysis focused on participants who may experience mild cognitive impairment, an area where low vitamin B12 levels could potentially raise the risk of depression.

After a thorough examination of studies, we found that the included trials did not support a significant benefit of vitamin B12 for alleviating depressive symptoms. In our evaluation of three studies focusing specifically on depression, the average difference in symptoms was negligible, indicating no real effect.

This outcome reflects that while vitamin B12 is essential for various bodily functions, its role in improving mood and reducing depression symptoms may not be as effective as some might hope. Further exploration is still warranted to better understand the contexts in which vitamin B12 could be beneficial.
Read More
We explored the impact of vitamin B12 supplementation on patients experiencing symptoms like depression, fatigue, and neuropathic pain—often linked with rheumatic diseases. Through our review of three case studies, we found that when these patients received vitamin B12 treatment, many of their depressive symptoms significantly improved.

The findings suggest that vitamin B12 may play a crucial role in alleviating not just physical discomfort, but also mental health issues like depression, which can accompany rheumatic conditions. Despite the patients initially presenting normal vitamin B12 levels in lab tests, the supplementation showed almost complete resolution of their symptoms, highlighting that clinical evaluations should not solely depend on blood test results.

In summary, we recommend that healthcare professionals consider assessing vitamin B12 levels early on when diagnosing rheumatic diseases and think about supplementation even if serum levels appear adequate. This approach might offer a straightforward and effective option for improving patients' quality of life.
Read More

Most Useful Reviews

9
Supports memory
1 people found this helpful
Vitamin B12 is crucial for cell division and nerve maintenance. A deficiency can lead to numerous cognitive disorders and heightened depression. It's essential for maintaining overall mental health and energy levels.
Read More
9
Improves mood
It’s effective in enhancing mood and reducing depression.
Read More
7.5
Eases anxiety
Vitamin B12 is vital for my health, boosting energy and alleviating anxiety and memory issues. I find that the methylcobalamin form has optimal absorption, which really helps with my overall mood.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 28 Researches
6.9
  • All Researches
We explored the impact of vitamin B12 supplementation on patients experiencing symptoms like depression, fatigue, and neuropathic pain—often linked with rheumatic diseases. Through our review of three case studies, we found that when these patients received vitamin B12 treatment, many of their depressive symptoms significantly improved.

The findings suggest that vitamin B12 may play a crucial role in alleviating not just physical discomfort, but also mental health issues like depression, which can accompany rheumatic conditions. Despite the patients initially presenting normal vitamin B12 levels in lab tests, the supplementation showed almost complete resolution of their symptoms, highlighting that clinical evaluations should not solely depend on blood test results.

In summary, we recommend that healthcare professionals consider assessing vitamin B12 levels early on when diagnosing rheumatic diseases and think about supplementation even if serum levels appear adequate. This approach might offer a straightforward and effective option for improving patients' quality of life.
Read More
We explored the relationship between vitamin B12 levels and major depressive disorder (MDD) by examining serum vitamin B12, homocysteine (Hcy), and blood profiles in 59 patients diagnosed with MDD. The severity of depression was evaluated using the HAM-D scale, which allows for a clear understanding of how vitamin B12 might be linked to depressive symptoms.

Our findings revealed that vitamin B12 was deficient or depleted in all patients. The average level of serum vitamin B12 was significantly lower in those experiencing severe depression. Furthermore, we observed that the mean Hcy level was high among the participants, compared to normal reference ranges. Interestingly, we noted that patients who included non-vegetarian foods in their diet had higher median levels of vitamin B12.

Overall, our results indicate that there’s a notable correlation between vitamin B12 deficiency and the severity of MDD. Hcy levels were also elevated in these patients. Importantly, the study highlighted that depressive symptoms might appear before the more recognized blood-related manifestations of vitamin B12 deficiency. Thus, our observations suggest that addressing vitamin B12 status could be relevant in managing depressive disorders.
Read More
8
Vitamin B shows potential in depression
We looked into how Vitamin B could change behaviors and brain chemistry in rats experiencing depression-like symptoms. Rats were split into groups to compare a control group, one exposed to chronic mild stress, and a group receiving Vitamin B injections.

Results showed that Vitamin B helped boost levels of key neurotransmitters associated with mood, reducing anxiety and depressive behaviors. It also positively impacted brain cell health by activating important signaling pathways.

Overall, Vitamin B appears promising in helping to combat depression-related issues in this rat model.
Read More
We explored how vitamin B12 influences stress resilience and depression using sophisticated methods in a mouse model. Our findings linked vitamin B12 supplementation to changes in a gene called Ttr, which plays a role in managing stress.

Interestingly, we noticed that vitamin B12 reduced genetic markers associated with stress in specific areas of the brain. This important discovery encourages further research into how dietary changes might help improve mood disorders.
Read More
8
Vitamin B affects depression risk
We explored the connection between vitamin B levels and depression in older adults over four years. Our study followed nearly 3,850 participants and found that those with low blood levels of vitamin B were significantly more likely to report depressive symptoms. Specifically, individuals with low vitamin B had a 51% higher chance of developing depression compared to those with adequate levels.

However, we did not find any significant link between folate levels and depression. These insights suggest that boosting vitamin B might be a simple, cost-effective way to help improve mental health in older adults.
Read More

User Reviews

USERS' SCORE
Good
Based on 4 Reviews
8.4
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Supports memory
1 people found this helpful
Vitamin B12 is crucial for cell division and nerve maintenance. A deficiency can lead to numerous cognitive disorders and heightened depression. It's essential for maintaining overall mental health and energy levels.
Read More
9
Improves mood
It’s effective in enhancing mood and reducing depression.
Read More
7.5
Eases anxiety
Vitamin B12 is vital for my health, boosting energy and alleviating anxiety and memory issues. I find that the methylcobalamin form has optimal absorption, which really helps with my overall mood.
Read More
7.5
Supports mental health
Vitamin B12 is crucial for daily health, aiding in red blood cell formation, nerve cell maintenance and DNA synthesis. A deficiency can lead to noticeable symptoms. Key benefits include mood adjustment, promoting mental health and supporting neurotransmitter production, which may help those with depression and mood disorders. Despite its effectiveness, one must consult a doctor before trying home remedies for depression to ensure proper absorption and avoid deficiencies.
Read More

Frequently Asked Questions

9
Improves mood
It’s effective in enhancing mood and reducing depression.
7.5
Eases anxiety
Vitamin B12 is vital for my health, boosting energy and alleviating anxiety and memory issues. I find that the methylcobalamin form has optimal absorption, which really helps with my overall mood.
7.5
Supports mental health
Vitamin B12 is crucial for daily health, aiding in red blood cell formation, nerve cell maintenance and DNA synthesis. A deficiency can lead to noticeable symptoms. Key benefits include mood adjustment, promoting mental health and supporting neurotransmitter production, which may help those with depression and mood disorders. Despite its effectiveness, one must consult a doctor before trying home remedies for depression to ensure proper absorption and avoid deficiencies.
9
Supports memory
1 people found this helpful
Vitamin B12 is crucial for cell division and nerve maintenance. A deficiency can lead to numerous cognitive disorders and heightened depression. It's essential for maintaining overall mental health and energy levels.
8
Vitamin B affects depression risk
We explored the connection between vitamin B levels and depression in older adults over four years. Our study followed nearly 3,850 participants and found that those with low blood levels of vitamin B were significantly more likely to report depressive symptoms. Specifically, individuals with low vitamin B had a 51% higher chance of developing depression compared to those with adequate levels.

However, we did not find any significant link between folate levels and depression. These insights suggest that boosting vitamin B might be a simple, cost-effective way to help improve mental health in older adults.
2
Vitamin B12 shows no benefit for depression
We assessed the effect of vitamin B12 supplementation on depressive symptoms by reviewing several randomized controlled trials (RCTs). Our analysis focused on participants who may experience mild cognitive impairment, an area where low vitamin B12 levels could potentially raise the risk of depression.

After a thorough examination of studies, we found that the included trials did not support a significant benefit of vitamin B12 for alleviating depressive symptoms. In our evaluation of three studies focusing specifically on depression, the average difference in symptoms was negligible, indicating no real effect.

This outcome reflects that while vitamin B12 is essential for various bodily functions, its role in improving mood and reducing depression symptoms may not be as effective as some might hope. Further exploration is still warranted to better understand the contexts in which vitamin B12 could be beneficial.
8
Causal link between vitamin B12 and MDD
We explored the connection between vitamin B12 and depression, focusing on its potential effects on mental health. Utilizing advanced methods like Mendelian randomization and linkage disequilibrium score regression, we aimed to uncover any causal relationships between this essential micronutrient and conditions like major depressive disorder (MDD).

In our analysis, we specifically looked for single nucleotide polymorphisms (SNPs) linked to vitamin B12 that could act as instrumental variables. Our findings suggested a significant association between vitamin B12 and MDD, indicating that higher levels of this vitamin might help alleviate depressive symptoms.

Particularly, we observed a notable negative correlation, meaning that as vitamin B12 levels increased, the severity of depressive symptoms tended to decrease. However, while the results are promising, we advocate for further research to fully understand the biological mechanisms connecting vitamin B12 and mental health.

These findings shine a light on the crucial role that micronutrients like vitamin B12 could play in supporting mental well-being, emphasizing the need for more in-depth studies in this area.

References

  1. Chen J, Liu J, Zhang P, Zhang S. [Effects of Vitamin B on Behaviors, Brain Monoamine Neurotransmitters, and Brain-Derived Neurotrophic Factor in Depressive Rats]. Sichuan Da Xue Xue Bao Yi Xue Ban. 2025;56:206. 10.12182/20250160608
  2. Stein G, Aly JS, Manzolillo A, Lange L, Riege K, et al. Transthyretin Orchestrates Vitamin B12-Induced Stress Resilience. Biol Psychiatry. 2025;97:54. 10.1016/j.biopsych.2024.07.009
  3. Lagzi N, Bateni A, Goli R, Talebiazar N. The effect of multivitamins on anxiety and depression in patients undergoing methadone maintenance treatment: A double-blind randomized controlled trial. Int J Psychiatry Med. 2023;58:576. 10.1177/00912174231179320
  4. Laird EJ, O'Halloran AM, Molloy AM, Healy M, Hernandez B, et al. Low vitamin B but not folate is associated with incident depressive symptoms in community-dwelling older adults: a 4-year longitudinal study. Br J Nutr. 2023;130:268. 10.1017/S0007114521004748
  5. Ferriani LO, Silva DA, Molina MDCB, Mill JG, Brunoni AR, et al. Associations of depression and intake of antioxidants and vitamin B complex: Results of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). J Affect Disord. 2022;297:259. 10.1016/j.jad.2021.10.027
  6. Wu Y, Li S, Wang W, Zhang D. Associations of dietary B vitamins intakes with depression in adults. Int J Vitam Nutr Res. 2023;93:142. 10.1024/0300-9831/a000720
  7. Wu Y, Zhang L, Li S, Zhang D. Associations of dietary vitamin B1, vitamin B2, vitamin B6, and vitamin B12 with the risk of depression: a systematic review and meta-analysis. Nutr Rev. 2022;80:351. 10.1093/nutrit/nuab014
  8. Dhiman P, Pillai RR, Wilson AB, Premkumar N, Bharadwaj B, et al. Cross-sectional association between vitamin B12 status and probable postpartum depression in Indian women. BMC Pregnancy Childbirth. 2021;21:146. 10.1186/s12884-021-03622-x
  9. Bou Khalil R, Atallah E, Dirani E, Kallab M, Kassab A, et al. Can atypical dysgeusia in depression be related to a deafferentation syndrome?. Med Hypotheses. 2020;144:110047. 10.1016/j.mehy.2020.110047
  10. Trautmann C, Bock A, Urbach A, Hübner CA, Engmann O. Acute vitamin B12 supplementation evokes antidepressant response and alters Ntrk-2. Neuropharmacology. 2020;171:108112. 10.1016/j.neuropharm.2020.108112
  11. Esnafoglu E, Ozturan DD. The relationship of severity of depression with homocysteine, folate, vitamin B12, and vitamin D levels in children and adolescents. Child Adolesc Ment Health. 2020;25:249. 10.1111/camh.12387
  12. Yang Y, Qi H, Zhang J, Jia J, Yang Y, et al. Evaluating the association of depressive symptoms on serum folate and erythrocyte folate levels based on the 2017-2020 NHANES database. Front Nutr. 2025;12:1505700. 10.3389/fnut.2025.1505700
  13. Siddique A, Khokhar MM, Waheed A, Naeem U, Aziz SA. Effect of combination therapy of methylfolate with antidepressants in patients with depressive disorder. BMC Pharmacol Toxicol. 2025;26:14. 10.1186/s40360-025-00846-x
  14. Guo Q, Wang Y, Guo L, Xu K, Shang S. Association of serum total folate and serum vitamin D concentrations with W-shape in depressed older adults with cognitive dysfunction: A cross-sectional observational study. Clin Nutr ESPEN. 2025;65:50. 10.1016/j.clnesp.2024.11.021
  15. Xiong Y, Zhou G, Zhou L, Guo M, Lu H. Serum molecules of the folate-driven one-carbon cycle as indicators of depressive tendencies in the elderly. Heliyon. 2024;10:e36980. 10.1016/j.heliyon.2024.e36980
  16. Liu M, Wang G, Jiang C. Independent and combined effect of serum copper and folate on depression: cross-sectional data from the NHANES 2011-2016. Front Nutr. 2024;11:1389480. 10.3389/fnut.2024.1389480
  17. Gao S, Khalid A, Amini-Salehi E, Radkhah N, Jamilian P, et al. Folate supplementation as a beneficial add-on treatment in relieving depressive symptoms: A meta-analysis of meta-analyses. Food Sci Nutr. 2024;12:3806. 10.1002/fsn3.4073
  18. Marinina KS, Bezprozvanny IB, Egorova PA. A combination of chlorzoxazone and folic acid improves recognition memory, anxiety and depression in SCA3-84Q mice. Hum Mol Genet. 2024;33:1406. 10.1093/hmg/ddae079
  19. Lv P, Xiang F, Zhang S, Lei D, Zhou C, et al. Valeriana jatamansi jones improves depressive behavior in CUMS mice by modulating vitamin B12-related ileal homeostasis. J Ethnopharmacol. 2025;342:119392. 10.1016/j.jep.2025.119392
  20. Alzahrani H. Assessment of Vitamin B12 Efficacy on Cognitive Memory Function and Depressive Symptoms: A Systematic Review and Meta-Analysis. Cureus. 2024;16:e73350. 10.7759/cureus.73350
  21. Zhang J, Liao Q, Chen H, Liu F, Sun D, et al. Association of Vitamin B12 and Polymorphism of with Early-Onset Post-Stroke Depression. Neuropsychiatr Dis Treat. 2024;20:2289. 10.2147/NDT.S480417
  22. Hui J, Zhang N, Kang M, Gou Y, Liu C, et al. Micronutrient-Associated Single Nucleotide Polymorphism and Mental Health: A Mendelian Randomization Study. Nutrients. 2024;16. 10.3390/nu16132042
  23. Harikaran S, Basu S, Mukherjee MP, Kar R, Nair S, et al. Vitamin B12 and homocysteine in patients with major depressive disorder. J Family Med Prim Care. 2024;13:2049. 10.4103/jfmpc.jfmpc_1460_23
  24. Gao Y, Yang J, Sun H, Zhou H. Efficacy of Danzhixiaoyao tablets combined with methylcobalamin tablets in the treatment of burning mouth syndrome: an open-label, randomized controlled trial. BMC Oral Health. 2024;24:603. 10.1186/s12903-024-04318-2
  25. Cruz-Rodríguez J, Canals-Sans J, Hernández-Martínez C, Arija V. Association between of vitamin B12 status during pregnancy and probable postpartum depression: the ECLIPSES study. J Reprod Infant Psychol. 2024. 10.1080/02646838.2024.2324043
  26. Reis da Silva T. Can supplementing vitamin B12 improve mental health outcomes?: a literature review. Br J Community Nurs. 2024;29:137. 10.12968/bjcn.2024.29.3.137
  27. Dułak NA, Rytlewska M, Jaskólska M, Chmielewski M. A new perspective on vitamin B12 deficiency in rheumatology: a case-based review. Rheumatol Int. 2024;44:737. 10.1007/s00296-024-05539-y
  28. Tan Y, Zhou L, Gu K, Xie C, Wang Y, et al. Correlation between Vitamin B12 and Mental Health in Children and Adolescents: A Systematic Review and Meta-analysis. Clin Psychopharmacol Neurosci. 2023;21:617. 10.9758/cpn.22.1040
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