Overview
SCIENTIFIC SCORE
Possibly Effective
Based on 7 Researches
7.7
USERS' SCORE
Good
Based on 9 Reviews
8.9
Supplement Facts
Serving Size: 1 Nugget
Amount Per Serving
%DV
Vitamin B12 (as methylcobalamin)
1000 mcg
41,667%
Top Medical Research Studies
8
Vitamin B12 promotes sleep in rats
We sought to determine the impact of vitamin B12 (VB12) on sleep patterns in rats, particularly considering its potential benefits for those struggling with insomnia. By giving rats a daily intravenous dose of VB12, we monitored their sleep using polysomnographic recordings over a four-day period.
During our observations, we noticed a significant increase in non-rapid eye movement (NREM) sleep on the second and third days of VB12 administration. Interestingly, REM sleep also showed a notable boost on the second day. The enhancements in sleep were particularly evident during the light period, indicating that vitamin B12 could play a role in promoting sleep at those times.
Additionally, we found that the rats receiving vitamin B12 exhibited serum levels that were 40 times higher than those in control rats, suggesting a robust absorption and impact of the vitamin. Overall, our findings indicate that administering VB12 peripherally does have positive effects on sleep in rats, especially during the light hours.
During our observations, we noticed a significant increase in non-rapid eye movement (NREM) sleep on the second and third days of VB12 administration. Interestingly, REM sleep also showed a notable boost on the second day. The enhancements in sleep were particularly evident during the light period, indicating that vitamin B12 could play a role in promoting sleep at those times.
Additionally, we found that the rats receiving vitamin B12 exhibited serum levels that were 40 times higher than those in control rats, suggesting a robust absorption and impact of the vitamin. Overall, our findings indicate that administering VB12 peripherally does have positive effects on sleep in rats, especially during the light hours.
Read More
8
We investigated whether vitamin B12 (methylcobalamin) could assist adolescents struggling with persistent sleep-wake schedule disorders. Remarkably, two patients—a 15-year-old girl with delayed sleep phase syndrome and a 17-year-old boy with hypernychthemeral syndrome—saw impressive improvements after taking high doses of B12 daily.
The girl's sleep improved significantly, reducing her sleep time from 10 hours to 7 hours and enabling her to fall asleep earlier. The boy's sleep-wake cycle also showed a positive shift. Overall, these initial findings suggest that B12 might play a helpful role in addressing certain sleep disorders in young individuals.
The girl's sleep improved significantly, reducing her sleep time from 10 hours to 7 hours and enabling her to fall asleep earlier. The boy's sleep-wake cycle also showed a positive shift. Overall, these initial findings suggest that B12 might play a helpful role in addressing certain sleep disorders in young individuals.
Read More
8
Vitamin B12 aids sleep-wake disorders
We explored the effects of Vitamin B12 on patients with long-standing sleep-wake rhythm disorders. In one case, a 15-year-old blind girl with a 25-hour sleep cycle improved dramatically after starting a regimen of 1.5 mg of B12 three times a day. Her sleep pattern aligned with the 24-hour cycle, but, after stopping the supplement, her issues returned within two months.
Similarly, a 55-year-old man with delayed sleep phase syndrome also benefitted from B12, experiencing sustained improvement for over six months. These findings suggest Vitamin B12 may be a valuable treatment for certain sleep-wake rhythm disorders.
Similarly, a 55-year-old man with delayed sleep phase syndrome also benefitted from B12, experiencing sustained improvement for over six months. These findings suggest Vitamin B12 may be a valuable treatment for certain sleep-wake rhythm disorders.
Read More
Most Useful Reviews
10
Resolved insomnia
132 people found this helpful
Love Solgar, a good form of vitamin B12. I've experienced a deficiency after COVID, but after using it, my insomnia improved, and my sleep normalised. I highly recommend it.
Read More
9
Fights insomnia
17 people found this helpful
An excellent form of vitamin B12. I was lacking B vitamins after COVID, but I'm now replenishing them. The small, sweet tablets dissolve well in the evening after meals. Vitamin B12 is crucial for hormonal and metabolic functions, and it aids sleep by stimulating melatonin production. It effectively fights insomnia, strengthens sleep, and enhances cognitive functions.
Read More
9
Copes with insomnia
6 people found this helpful
I’m very pleased with the results. My doctor recommended this supplement for my mother, in conjunction with iron and folic acid. Solgar's products are reliable and effective. My mother took one capsule daily with meals, and it has really helped with her insomnia, allowing her to wake up cheerful and well-rested. There were no side effects, and we’re planning to order more.
Read More
Medical Researches
SCIENTIFIC SCORE
Possibly Effective
Based on 7 Researches
7.7
- All Researches
8
We investigated whether vitamin B12 (methylcobalamin) could assist adolescents struggling with persistent sleep-wake schedule disorders. Remarkably, two patients—a 15-year-old girl with delayed sleep phase syndrome and a 17-year-old boy with hypernychthemeral syndrome—saw impressive improvements after taking high doses of B12 daily.
The girl's sleep improved significantly, reducing her sleep time from 10 hours to 7 hours and enabling her to fall asleep earlier. The boy's sleep-wake cycle also showed a positive shift. Overall, these initial findings suggest that B12 might play a helpful role in addressing certain sleep disorders in young individuals.
The girl's sleep improved significantly, reducing her sleep time from 10 hours to 7 hours and enabling her to fall asleep earlier. The boy's sleep-wake cycle also showed a positive shift. Overall, these initial findings suggest that B12 might play a helpful role in addressing certain sleep disorders in young individuals.
Read More
8
Vitamin B12 aids sleep-wake disorders
We explored the effects of Vitamin B12 on patients with long-standing sleep-wake rhythm disorders. In one case, a 15-year-old blind girl with a 25-hour sleep cycle improved dramatically after starting a regimen of 1.5 mg of B12 three times a day. Her sleep pattern aligned with the 24-hour cycle, but, after stopping the supplement, her issues returned within two months.
Similarly, a 55-year-old man with delayed sleep phase syndrome also benefitted from B12, experiencing sustained improvement for over six months. These findings suggest Vitamin B12 may be a valuable treatment for certain sleep-wake rhythm disorders.
Similarly, a 55-year-old man with delayed sleep phase syndrome also benefitted from B12, experiencing sustained improvement for over six months. These findings suggest Vitamin B12 may be a valuable treatment for certain sleep-wake rhythm disorders.
Read More
8
We explored the relationship between vitamin B12 levels and insomnia in a case involving a woman experiencing excessive daytime sleepiness alternating with insomnia. This case fit the criteria for a non-24-hour sleep-wake disorder, where traditional treatments failed to provide relief.
Upon further examination, we discovered deficiencies not just in vitamin B12, but also in vitamin D3 and folic acid. After addressing these deficiencies through supplementation, the subject reported a return to a 24-hour sleep-wake cycle.
However, it's essential to note that the improvement in sleep patterns remained detached from the external light-dark environment. This raises the intriguing question of whether vitamin B12's influence is direct or if it simply coexists with other factors influencing sleep.
While there were notable changes after treatment, isolating the specific effect of vitamin B12 on insomnia from the other vitamins administered remains a challenge. Thus, we observe that while vitamin B12 is part of the bigger picture, its individual effectiveness in treating insomnia cannot be confirmed from this study alone.
Upon further examination, we discovered deficiencies not just in vitamin B12, but also in vitamin D3 and folic acid. After addressing these deficiencies through supplementation, the subject reported a return to a 24-hour sleep-wake cycle.
However, it's essential to note that the improvement in sleep patterns remained detached from the external light-dark environment. This raises the intriguing question of whether vitamin B12's influence is direct or if it simply coexists with other factors influencing sleep.
While there were notable changes after treatment, isolating the specific effect of vitamin B12 on insomnia from the other vitamins administered remains a challenge. Thus, we observe that while vitamin B12 is part of the bigger picture, its individual effectiveness in treating insomnia cannot be confirmed from this study alone.
Read More
8
In our exploration of insomnia treatment, we worked with 60 patients diagnosed with the condition. They were split into two groups: one received the Magnesium-melatonin-vitamin B complex, while the other acted as a control. The specific goal was to determine if this combination, which included Vitamin B12, could effectively improve sleep quality over a three-month period.
We found that participants receiving the Magnesium-melatonin-vitamin B complex reported a reduction in insomnia symptoms, as indicated by the Athens Insomnia Scale scores. Initially, the average sleep problem scores were quite similar between both groups, showing they were compatible at the start. However, after three months, the treatment group saw their insomnia scores significantly drop, suggesting that the supplement had a beneficial impact.
While the findings point to the treatment's effectiveness, it's essential to note that Vitamin B12 was part of a combination therapy. This means we cannot isolate its specific contribution to the improvement seen. As such, while we can say that the combination helped with insomnia, we need further studies to understand the exact role of Vitamin B12 in this context.
We found that participants receiving the Magnesium-melatonin-vitamin B complex reported a reduction in insomnia symptoms, as indicated by the Athens Insomnia Scale scores. Initially, the average sleep problem scores were quite similar between both groups, showing they were compatible at the start. However, after three months, the treatment group saw their insomnia scores significantly drop, suggesting that the supplement had a beneficial impact.
While the findings point to the treatment's effectiveness, it's essential to note that Vitamin B12 was part of a combination therapy. This means we cannot isolate its specific contribution to the improvement seen. As such, while we can say that the combination helped with insomnia, we need further studies to understand the exact role of Vitamin B12 in this context.
Read More
8
Vitamin B12 promotes sleep in rats
We sought to determine the impact of vitamin B12 (VB12) on sleep patterns in rats, particularly considering its potential benefits for those struggling with insomnia. By giving rats a daily intravenous dose of VB12, we monitored their sleep using polysomnographic recordings over a four-day period.
During our observations, we noticed a significant increase in non-rapid eye movement (NREM) sleep on the second and third days of VB12 administration. Interestingly, REM sleep also showed a notable boost on the second day. The enhancements in sleep were particularly evident during the light period, indicating that vitamin B12 could play a role in promoting sleep at those times.
Additionally, we found that the rats receiving vitamin B12 exhibited serum levels that were 40 times higher than those in control rats, suggesting a robust absorption and impact of the vitamin. Overall, our findings indicate that administering VB12 peripherally does have positive effects on sleep in rats, especially during the light hours.
During our observations, we noticed a significant increase in non-rapid eye movement (NREM) sleep on the second and third days of VB12 administration. Interestingly, REM sleep also showed a notable boost on the second day. The enhancements in sleep were particularly evident during the light period, indicating that vitamin B12 could play a role in promoting sleep at those times.
Additionally, we found that the rats receiving vitamin B12 exhibited serum levels that were 40 times higher than those in control rats, suggesting a robust absorption and impact of the vitamin. Overall, our findings indicate that administering VB12 peripherally does have positive effects on sleep in rats, especially during the light hours.
Read More
User Reviews
USERS' SCORE
Good
Based on 9 Reviews
8.9
- All Reviews
- Positive Reviews
- Negative Reviews
10
Resolved insomnia
132 people found this helpful
Love Solgar, a good form of vitamin B12. I've experienced a deficiency after COVID, but after using it, my insomnia improved, and my sleep normalised. I highly recommend it.
Read More
9
Fights insomnia
17 people found this helpful
An excellent form of vitamin B12. I was lacking B vitamins after COVID, but I'm now replenishing them. The small, sweet tablets dissolve well in the evening after meals. Vitamin B12 is crucial for hormonal and metabolic functions, and it aids sleep by stimulating melatonin production. It effectively fights insomnia, strengthens sleep, and enhances cognitive functions.
Read More
9
Copes with insomnia
6 people found this helpful
I’m very pleased with the results. My doctor recommended this supplement for my mother, in conjunction with iron and folic acid. Solgar's products are reliable and effective. My mother took one capsule daily with meals, and it has really helped with her insomnia, allowing her to wake up cheerful and well-rested. There were no side effects, and we’re planning to order more.
Read More
9
Eased falling asleep
3 people found this helpful
Initially, I didn’t notice any difference after a month of taking the pills, but then I found myself falling asleep more easily and sleeping well. Eventually, I completely forgot about my insomnia, waking up feeling light and refreshed.
Read More
7.5
Significantly improved insomnia
2 people found this helpful
I have been taking Solgar sublingual methylcobalamin for two years now, and it has significantly changed my life regarding insomnia, anemia, and low cortisol levels. I take the supplement periodically for six days a month.
Read More
Frequently Asked Questions
9
Eased falling asleep
3 people found this helpful
Initially, I didn’t notice any difference after a month of taking the pills, but then I found myself falling asleep more easily and sleeping well. Eventually, I completely forgot about my insomnia, waking up feeling light and refreshed.
7.5
Significantly improved insomnia
2 people found this helpful
I have been taking Solgar sublingual methylcobalamin for two years now, and it has significantly changed my life regarding insomnia, anemia, and low cortisol levels. I take the supplement periodically for six days a month.
9
Wakes up vigorous
1 people found this helpful
Solgar products are reliable! I really liked this product as it helps me cope with insomnia, allowing me to wake up feeling vigorous and well-rested in the morning.
9
Well-rested mornings
Solgar products are of high quality! I appreciate this product, as it helps me manage my insomnia, and I wake up feeling vigorous and well-rested in the mornings.
10
Resolved insomnia
132 people found this helpful
Love Solgar, a good form of vitamin B12. I've experienced a deficiency after COVID, but after using it, my insomnia improved, and my sleep normalised. I highly recommend it.
9
Copes with insomnia
6 people found this helpful
I’m very pleased with the results. My doctor recommended this supplement for my mother, in conjunction with iron and folic acid. Solgar's products are reliable and effective. My mother took one capsule daily with meals, and it has really helped with her insomnia, allowing her to wake up cheerful and well-rested. There were no side effects, and we’re planning to order more.
2
Not effective for insomnia
I tried this product due to my insomnia, but it hasn't been very effective. It does taste good, though.
9
Fights insomnia
17 people found this helpful
An excellent form of vitamin B12. I was lacking B vitamins after COVID, but I'm now replenishing them. The small, sweet tablets dissolve well in the evening after meals. Vitamin B12 is crucial for hormonal and metabolic functions, and it aids sleep by stimulating melatonin production. It effectively fights insomnia, strengthens sleep, and enhances cognitive functions.
8
We investigated whether vitamin B12 (methylcobalamin) could assist adolescents struggling with persistent sleep-wake schedule disorders. Remarkably, two patients—a 15-year-old girl with delayed sleep phase syndrome and a 17-year-old boy with hypernychthemeral syndrome—saw impressive improvements after taking high doses of B12 daily.
The girl's sleep improved significantly, reducing her sleep time from 10 hours to 7 hours and enabling her to fall asleep earlier. The boy's sleep-wake cycle also showed a positive shift. Overall, these initial findings suggest that B12 might play a helpful role in addressing certain sleep disorders in young individuals.
The girl's sleep improved significantly, reducing her sleep time from 10 hours to 7 hours and enabling her to fall asleep earlier. The boy's sleep-wake cycle also showed a positive shift. Overall, these initial findings suggest that B12 might play a helpful role in addressing certain sleep disorders in young individuals.
8
Vitamin B12 aids sleep-wake disorders
We explored the effects of Vitamin B12 on patients with long-standing sleep-wake rhythm disorders. In one case, a 15-year-old blind girl with a 25-hour sleep cycle improved dramatically after starting a regimen of 1.5 mg of B12 three times a day. Her sleep pattern aligned with the 24-hour cycle, but, after stopping the supplement, her issues returned within two months.
Similarly, a 55-year-old man with delayed sleep phase syndrome also benefitted from B12, experiencing sustained improvement for over six months. These findings suggest Vitamin B12 may be a valuable treatment for certain sleep-wake rhythm disorders.
Similarly, a 55-year-old man with delayed sleep phase syndrome also benefitted from B12, experiencing sustained improvement for over six months. These findings suggest Vitamin B12 may be a valuable treatment for certain sleep-wake rhythm disorders.
7
We assessed the relationship between vitamin B12 levels and insomnia symptoms in a diverse group of adults visiting primary healthcare clinics in Greece. Our research involved 512 participants, from which we gathered a variety of information including age, weight, and health history. Using standardized scales, we measured excessive daytime sleepiness, insomnia symptoms, and overall sleep quality.
Our findings highlighted that lower vitamin B12 levels, particularly below 342 pg/mL, were linked to increased insomnia symptoms. This association was particularly pronounced in certain groups, such as elderly, non-obese, and female participants. Interestingly, we found that excessive daytime sleepiness connected with low B12 levels only affected obese participants.
However, we did not find a significant connection between vitamin B12 levels and poor overall sleep quality. This indicates that while vitamin B12 may play a role in insomnia for specific individuals, its impact on sleep quality itself remains unclear. Therefore, while our study sheds light on these associations, further research is needed to explore the underlying dynamics between sleep and vitamin B12 more fully.
Our findings highlighted that lower vitamin B12 levels, particularly below 342 pg/mL, were linked to increased insomnia symptoms. This association was particularly pronounced in certain groups, such as elderly, non-obese, and female participants. Interestingly, we found that excessive daytime sleepiness connected with low B12 levels only affected obese participants.
However, we did not find a significant connection between vitamin B12 levels and poor overall sleep quality. This indicates that while vitamin B12 may play a role in insomnia for specific individuals, its impact on sleep quality itself remains unclear. Therefore, while our study sheds light on these associations, further research is needed to explore the underlying dynamics between sleep and vitamin B12 more fully.
8
In our exploration of insomnia treatment, we worked with 60 patients diagnosed with the condition. They were split into two groups: one received the Magnesium-melatonin-vitamin B complex, while the other acted as a control. The specific goal was to determine if this combination, which included Vitamin B12, could effectively improve sleep quality over a three-month period.
We found that participants receiving the Magnesium-melatonin-vitamin B complex reported a reduction in insomnia symptoms, as indicated by the Athens Insomnia Scale scores. Initially, the average sleep problem scores were quite similar between both groups, showing they were compatible at the start. However, after three months, the treatment group saw their insomnia scores significantly drop, suggesting that the supplement had a beneficial impact.
While the findings point to the treatment's effectiveness, it's essential to note that Vitamin B12 was part of a combination therapy. This means we cannot isolate its specific contribution to the improvement seen. As such, while we can say that the combination helped with insomnia, we need further studies to understand the exact role of Vitamin B12 in this context.
We found that participants receiving the Magnesium-melatonin-vitamin B complex reported a reduction in insomnia symptoms, as indicated by the Athens Insomnia Scale scores. Initially, the average sleep problem scores were quite similar between both groups, showing they were compatible at the start. However, after three months, the treatment group saw their insomnia scores significantly drop, suggesting that the supplement had a beneficial impact.
While the findings point to the treatment's effectiveness, it's essential to note that Vitamin B12 was part of a combination therapy. This means we cannot isolate its specific contribution to the improvement seen. As such, while we can say that the combination helped with insomnia, we need further studies to understand the exact role of Vitamin B12 in this context.
References
- Ohta T, Ando K, Iwata T, Ozaki N, Kayukawa Y, et al. Treatment of persistent sleep-wake schedule disorders in adolescents with methylcobalamin (vitamin B12). Sleep. 1991;14:414.
- Okawa M, Mishima K, Nanami T, Shimizu T, Iijima S, et al. Vitamin B12 treatment for sleep-wake rhythm disorders. Sleep. 1990;13:15.
- Bouloukaki I, Lampou M, Raouzaiou KM, Lambraki E, Schiza S, et al. Association of Vitamin B12 Levels with Sleep Quality, Insomnia, and Sleepiness in Adult Primary Healthcare Users in Greece. Healthcare (Basel). 2023;11. doi:10.3390/healthcare11233026
- Radlberger RF, Kunz AB. Vitamin D deficiency promoting non-24 h sleep-wake disorder: a case report. Front Neurol. 2023;14:1141835. doi:10.3389/fneur.2023.1141835
- Xiong S, Liu Z, Yao N, Zhang X, Ge Q. The independent association between vitamin B12 and insomnia in Chinese patients with type 2 diabetes mellitus: a cross-sectional study. Nutr Diabetes. 2022;12:3. doi:10.1038/s41387-022-00181-8
- Djokic G, Vojvodić P, Korcok D, Agic A, Rankovic A, et al. The Effects of Magnesium - Melatonin - Vit B Complex Supplementation in Treatment of Insomnia. Open Access Maced J Med Sci. 2019;7:3101. doi:10.3889/oamjms.2019.771
- Chang HY, Sei H, Morita Y. Effects of intravenously administered vitamin B12 on sleep in the rat. Physiol Behav. 1995;57:1019.
