Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 8 Researches
7.3
USERS' SCORE
Medium or Average
Based on 13 Reviews
6.8
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
Vitamin B₁₂ (as Methylcobalamin)
1,000 mcg
41,667%

Top Medical Research Studies

We conducted a case-control study to investigate the link between vitamin B12 serum levels and migraine, which affects so many people but lacks a fully understood cause. Our research included 90 individuals experiencing migraines—split into those with chronic migraines and those with episodic migraines—matched against 90 healthy participants.

We measured vitamin B12 serum levels using a reliable testing method and explored how these levels correlated with migraine intensity, as assessed by two measuring scales. Notably, we found that migraine sufferers had significantly lower levels of vitamin B12 compared to those without migraines.

Chronic migraine patients specifically had even lower vitamin B12 levels than their episodic counterparts. Additionally, there was a noteworthy negative correlation; as vitamin B12 levels decreased, the severity of migraine attacks increased. These findings suggest that vitamin B12 deficiency may have an important relationship with migraine experiences, emphasizing the need for further studies to explore this connection in detail.
Read More
We evaluated whether B vitamins, particularly B1, B6, B12, and B9, could help reduce migraine headaches in women. This rigorous double-blind, placebo-controlled study involved 120 participants who took these vitamins or a placebo for 12 weeks.

The results showed notable improvements for those taking the B vitamins, including fewer headache attacks and reduced need for medication. However, while these findings are promising, further research with larger groups and longer follow-ups is necessary to verify the effects.
Read More
7
Cerebral venous thrombosis and treatment
We explored the case of a 25-year-old man who came to the hospital with severe headaches and dizziness. Following a diagnosis of cerebral venous thrombosis, linked to his vitamin B12 deficiency from nitrous oxide use, he received treatment that included vitamin B12 supplements.

After a week of therapy, both his headaches and vision issues notably improved, allowing for discharge. This case suggests vitamin B12 could be a helpful part of treating headaches associated with specific deficiencies.
Read More

Most Useful Reviews

9
Effective for headaches
7 people found this helpful
Wonderful effect! Firstly, the remedy is stable and has alleviated my shoulder stiffness and muscle fatigue. My tired eyes felt a relief, and it effectively treated my headaches caused by eye strain. The efficacy at this price is astounding!
Read More
0
Increased headache frequency
5 people found this helpful
Please avoid this product! After a week, I stopped taking it due to frequent headaches, which I didn’t have before. When I stopped, the pain subsided, but restarting led to the same issue. It's disappointing.
Read More
9
Headaches reduced dramatically
2 people found this helpful
I found this tool very effective, particularly for those who suffer from headaches due to weather changes. After taking it for two weeks, I realised I hadn’t experienced any headaches. It’s convenient to take just one tablet, and it’s economical enough for the whole family.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 8 Researches
7.3
  • All Researches
9
B12 shows promise in headache relief
We investigated a unique case where a 14-year-old girl experienced prolonged headaches and nausea due to cerebral venous thrombosis linked to a rare genetic mutation. Elevated homocysteine levels were discovered during examinations, leading to anticoagulation therapy.

Notably, after receiving additional vitamins like B12, the patient reported no headaches within a month, alongside a significant decrease in intracranial pressure and thrombosis size. Although the treatment context is specialized, this case emphasizes the importance of understanding genetic factors in headache disorders.
Read More
We evaluated whether B vitamins, particularly B1, B6, B12, and B9, could help reduce migraine headaches in women. This rigorous double-blind, placebo-controlled study involved 120 participants who took these vitamins or a placebo for 12 weeks.

The results showed notable improvements for those taking the B vitamins, including fewer headache attacks and reduced need for medication. However, while these findings are promising, further research with larger groups and longer follow-ups is necessary to verify the effects.
Read More
We conducted a case-control study to investigate the link between vitamin B12 serum levels and migraine, which affects so many people but lacks a fully understood cause. Our research included 90 individuals experiencing migraines—split into those with chronic migraines and those with episodic migraines—matched against 90 healthy participants.

We measured vitamin B12 serum levels using a reliable testing method and explored how these levels correlated with migraine intensity, as assessed by two measuring scales. Notably, we found that migraine sufferers had significantly lower levels of vitamin B12 compared to those without migraines.

Chronic migraine patients specifically had even lower vitamin B12 levels than their episodic counterparts. Additionally, there was a noteworthy negative correlation; as vitamin B12 levels decreased, the severity of migraine attacks increased. These findings suggest that vitamin B12 deficiency may have an important relationship with migraine experiences, emphasizing the need for further studies to explore this connection in detail.
Read More
7
Cerebral venous thrombosis and treatment
We explored the case of a 25-year-old man who came to the hospital with severe headaches and dizziness. Following a diagnosis of cerebral venous thrombosis, linked to his vitamin B12 deficiency from nitrous oxide use, he received treatment that included vitamin B12 supplements.

After a week of therapy, both his headaches and vision issues notably improved, allowing for discharge. This case suggests vitamin B12 could be a helpful part of treating headaches associated with specific deficiencies.
Read More
We investigated the prevalence and impact of vitamin B12 deficiency in a diverse group of patients at a tertiary care hospital. With a focus on individuals aged 50 to 65, particularly strict vegetarians, we found that many suffered from significant symptoms, including headache.

Among the 220 cases studied, 95% reported head heaviness or headaches as a psychiatric manifestation, showcasing the importance of recognizing vitamin B12 deficiency. Early detection and treatment can reverse most related disorders, highlighting the need for greater awareness in clinical settings.
Read More

User Reviews

USERS' SCORE
Medium or Average
Based on 13 Reviews
6.8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Effective for headaches
7 people found this helpful
Wonderful effect! Firstly, the remedy is stable and has alleviated my shoulder stiffness and muscle fatigue. My tired eyes felt a relief, and it effectively treated my headaches caused by eye strain. The efficacy at this price is astounding!
Read More
0
Increased headache frequency
5 people found this helpful
Please avoid this product! After a week, I stopped taking it due to frequent headaches, which I didn’t have before. When I stopped, the pain subsided, but restarting led to the same issue. It's disappointing.
Read More
9
Headaches reduced dramatically
2 people found this helpful
I found this tool very effective, particularly for those who suffer from headaches due to weather changes. After taking it for two weeks, I realised I hadn’t experienced any headaches. It’s convenient to take just one tablet, and it’s economical enough for the whole family.
Read More
9
Relieved chronic headaches
2 people found this helpful
I purchased this vitamin to boost my brain function, and it works. My mother has suffered from long-standing headaches and is absolutely thrilled with the results! No doctor has provided something this effective.
Read More
9
Persistent headache relief
1 people found this helpful
I am very happy with Jarrow Formulas B12 and recommend it to everyone. B12 deficiency relates not only to diet but also to lifestyle or stress. My headaches and dizziness disappeared after the course, and I feel less tired now.
Read More

Frequently Asked Questions

9
Headaches reduced dramatically
2 people found this helpful
I found this tool very effective, particularly for those who suffer from headaches due to weather changes. After taking it for two weeks, I realised I hadn’t experienced any headaches. It’s convenient to take just one tablet, and it’s economical enough for the whole family.
0
Increased headache frequency
5 people found this helpful
Please avoid this product! After a week, I stopped taking it due to frequent headaches, which I didn’t have before. When I stopped, the pain subsided, but restarting led to the same issue. It's disappointing.
9
Persistent headache relief
1 people found this helpful
I am very happy with Jarrow Formulas B12 and recommend it to everyone. B12 deficiency relates not only to diet but also to lifestyle or stress. My headaches and dizziness disappeared after the course, and I feel less tired now.
9
Headache elimination
This product tastes great and is reasonably priced. I often struggle with low B12 levels as a vegetarian, but this B12 eliminates my headaches and boosts my energy within days.
9
Relieved chronic headaches
2 people found this helpful
I purchased this vitamin to boost my brain function, and it works. My mother has suffered from long-standing headaches and is absolutely thrilled with the results! No doctor has provided something this effective.
0
Instant headache
It gave me a headache straight away.
7.5
Less headache pain
9 people found this helpful
I really enjoyed these tasty vitamins, taking them along with other B vitamins at different times. I’ve noticed that my headaches have lessened significantly since using them. I used to buy a mixed complex but now choose only the most beneficial ones for my relief.
9
Effective for headaches
7 people found this helpful
Wonderful effect! Firstly, the remedy is stable and has alleviated my shoulder stiffness and muscle fatigue. My tired eyes felt a relief, and it effectively treated my headaches caused by eye strain. The efficacy at this price is astounding!
0
Severe headache reaction
1 people found this helpful
Do not consume B12 without folic acid! I experienced an awful headache that made me unable to eat, leading me to discard it entirely. The sweet lemon flavour was pleasant, making it easy to consume.
0
Causes dizziness
I did not like the product as it caused me to feel dizzy and develop a headache about an hour after taking it. Even after trying to reduce the dose to half or a quarter, the same issue persisted. I won’t purchase it again.
7
Cerebral venous thrombosis and treatment
We explored the case of a 25-year-old man who came to the hospital with severe headaches and dizziness. Following a diagnosis of cerebral venous thrombosis, linked to his vitamin B12 deficiency from nitrous oxide use, he received treatment that included vitamin B12 supplements.

After a week of therapy, both his headaches and vision issues notably improved, allowing for discharge. This case suggests vitamin B12 could be a helpful part of treating headaches associated with specific deficiencies.
We investigated the prevalence and impact of vitamin B12 deficiency in a diverse group of patients at a tertiary care hospital. With a focus on individuals aged 50 to 65, particularly strict vegetarians, we found that many suffered from significant symptoms, including headache.

Among the 220 cases studied, 95% reported head heaviness or headaches as a psychiatric manifestation, showcasing the importance of recognizing vitamin B12 deficiency. Early detection and treatment can reverse most related disorders, highlighting the need for greater awareness in clinical settings.
We evaluated whether B vitamins, particularly B1, B6, B12, and B9, could help reduce migraine headaches in women. This rigorous double-blind, placebo-controlled study involved 120 participants who took these vitamins or a placebo for 12 weeks.

The results showed notable improvements for those taking the B vitamins, including fewer headache attacks and reduced need for medication. However, while these findings are promising, further research with larger groups and longer follow-ups is necessary to verify the effects.
We conducted a case-control study to investigate the link between vitamin B12 serum levels and migraine, which affects so many people but lacks a fully understood cause. Our research included 90 individuals experiencing migraines—split into those with chronic migraines and those with episodic migraines—matched against 90 healthy participants.

We measured vitamin B12 serum levels using a reliable testing method and explored how these levels correlated with migraine intensity, as assessed by two measuring scales. Notably, we found that migraine sufferers had significantly lower levels of vitamin B12 compared to those without migraines.

Chronic migraine patients specifically had even lower vitamin B12 levels than their episodic counterparts. Additionally, there was a noteworthy negative correlation; as vitamin B12 levels decreased, the severity of migraine attacks increased. These findings suggest that vitamin B12 deficiency may have an important relationship with migraine experiences, emphasizing the need for further studies to explore this connection in detail.
We evaluated the connection between vitamin B12 levels and migraines in our case-control study involving 70 migraine patients and 70 healthy individuals.

Our findings revealed that migraine sufferers had notably lower levels of B12 and higher levels of methylmalonic acid (MMA). Interestingly, those with the highest B12 levels had a significantly reduced risk of experiencing migraines, while higher MMA levels corresponded with an increased migraine risk.

However, there was no clear link between these vitamin levels and specific headache characteristics. Overall, while B12 deficiency might be associated with migraines, it doesn't seem to directly affect headache traits.

References

  1. Zhang M, Shi B, Zhao M. Cerebral venous thrombosis with hyperhomocysteinemia due to loss of heterozygosity at methylenetetrahydrofolate reductase (MTHFR) locus: a case report. BMC Neurol. 2023;23:154. doi:10.1186/s12883-023-03200-y
  2. Lin SS, Fan IW, Chen CY, Su YJ. A nitrous oxide abuser presenting with cerebral venous thrombosis: A case report. Med Int (Lond). 2022;2:20. doi:10.3892/mi.2022.45
  3. Singh J, Dinkar A, Gupta P, Atam V. Vitamin B12 deficiency in northern India tertiary care: Prevalence, risk factors and clinical characteristics. J Family Med Prim Care. 2022;11:2381. doi:10.4103/jfmpc.jfmpc_650_21
  4. Nematgorgani S, Razeghi-Jahromi S, Jafari E, Togha M, Rafiee P, et al. B vitamins and their combination could reduce migraine headaches: A randomized double-blind controlled trial. Curr J Neurol. 2022;21:105. doi:10.18502/cjn.v21i2.10494
  5. Arıcan P, Bozkurt O, Cavusoglu D, Gencpınar P, Haspolat S, et al. Various Neurological Symptoms with Vitamin B12 Deficiency and Posttreatment Evaluation. J Pediatr Neurosci. 2020;15:365. doi:10.4103/jpn.JPN_130_19
  6. Liampas IN, Siokas V, Aloizou AM, Tsouris Z, Dastamani M, et al. Pyridoxine, folate and cobalamin for migraine: A systematic review. Acta Neurol Scand. 2020;142:108. doi:10.1111/ane.13251
  7. Togha M, Razeghi Jahromi S, Ghorbani Z, Martami F, Seifishahpar M. Serum Vitamin B12 and Methylmalonic Acid Status in Migraineurs: A Case-Control Study. Headache. 2019;59:1492. doi:10.1111/head.13618
  8. Abdelsadek SE, Tahoun SA, Mansour FM, Abdulsalam MF, Ahmed AM. The correlation between vitamin B12 serum levels and migraine: a case-control study. Neurol Res. 2025;47:195. doi:10.1080/01616412.2025.2462735
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