Overview
SCIENTIFIC SCORE
Questionable
Based on 7 Researches
6.4
USERS' SCORE
Good
Based on 15 Reviews
8
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
Vitamin B12(as Methylcobalamin)
5,000 mcg
208,330%
Top Medical Research Studies
0
Vitamin B12 ineffective for CFS
We explored the effectiveness of high-dose vitamin B12 injections on chronic fatigue syndrome (CFS) through two case reports that utilized N of 1 trials. This approach allowed us to make tailored treatment decisions based on individual responses to the therapy.
In one case, we found that high-dose vitamin B12 injections did not yield positive results, leaving the patient without significant relief from their symptoms. Conversely, in another case, we observed that nimodipine proved to be a very effective treatment for that patient’s chronic fatigue.
These findings suggest that while vitamin B12 may not be helpful for everyone suffering from CFS, other treatments like nimodipine can be beneficial. Thus, personalized treatment strategies are key in managing this complex and varied condition.
In one case, we found that high-dose vitamin B12 injections did not yield positive results, leaving the patient without significant relief from their symptoms. Conversely, in another case, we observed that nimodipine proved to be a very effective treatment for that patient’s chronic fatigue.
These findings suggest that while vitamin B12 may not be helpful for everyone suffering from CFS, other treatments like nimodipine can be beneficial. Thus, personalized treatment strategies are key in managing this complex and varied condition.
Read More
8
We investigated the use of vitamin B12 nasal drops in adults with chronic fatigue syndrome (CFS) over three months. A total of 51 patients participated, and we measured their vitamin B12 levels alongside physical activity and fatigue scores.
Remarkably, two-thirds of the participants experienced positive results, including increased activity and better overall scores on fatigue measures. While responders showed significant improvements, the non-responders had only minor increases in vitamin B12 levels.
This indicates that vitamin B12 nasal drops could be a beneficial alternative to injections for many CFS patients.
Remarkably, two-thirds of the participants experienced positive results, including increased activity and better overall scores on fatigue measures. While responders showed significant improvements, the non-responders had only minor increases in vitamin B12 levels.
This indicates that vitamin B12 nasal drops could be a beneficial alternative to injections for many CFS patients.
Read More
8
We evaluated the impact of B12 injections combined with folic acid on patients with chronic fatigue syndrome, also known as myalgic encephalomyelitis (ME). In our survey of 38 patients, we identified two groups based on their response: Good and Mild responders. Good responders received more frequent and higher doses of B12, leading to significant improvements in their symptoms.
However, Mild responders, many of whom took pain medications, reported minimal progress. Overall, while some patients showed benefits, the effectiveness of B12 treatment varies widely, and further research is needed to understand optimal dosages and drug interactions.
However, Mild responders, many of whom took pain medications, reported minimal progress. Overall, while some patients showed benefits, the effectiveness of B12 treatment varies widely, and further research is needed to understand optimal dosages and drug interactions.
Read More
Most Useful Reviews
7.5
Relieves brain fog
451 people found this helpful
I have tried sublingual B-12s before but never saw much difference, until I tried this one. I had a huge relapse of my chronic fatigue syndrome and was desperate for something to help with my debilitating brain fog. The day after I started taking it, I noticed about a 90% reduction in my brain fog and a boost in morning energy. I plan to experiment with taking it in the afternoon too. Each individual reacts differently, but I am very pleased with my results. This B-12 is a solid choice; I will continue to use it.
Read More
7.5
Aids absorption
16 people found this helpful
I took this vitamin B12 due to a deficiency from gastrointestinal issues. It's delicious with a strawberry flavour, and I’m now repeating at 1000 mcg to help with my chronic fatigue syndrome and overall nutrient absorption.
Read More
9
Life-changing supplement
8 people found this helpful
Excellent product; it has been invaluable for managing my chronic fatigue syndrome and fibromyalgia. I truly can't live without it.
Read More
Medical Researches
SCIENTIFIC SCORE
Questionable
Based on 7 Researches
6.4
- All Researches
8
We investigated the use of vitamin B12 nasal drops in adults with chronic fatigue syndrome (CFS) over three months. A total of 51 patients participated, and we measured their vitamin B12 levels alongside physical activity and fatigue scores.
Remarkably, two-thirds of the participants experienced positive results, including increased activity and better overall scores on fatigue measures. While responders showed significant improvements, the non-responders had only minor increases in vitamin B12 levels.
This indicates that vitamin B12 nasal drops could be a beneficial alternative to injections for many CFS patients.
Remarkably, two-thirds of the participants experienced positive results, including increased activity and better overall scores on fatigue measures. While responders showed significant improvements, the non-responders had only minor increases in vitamin B12 levels.
This indicates that vitamin B12 nasal drops could be a beneficial alternative to injections for many CFS patients.
Read More
8
We evaluated the impact of B12 injections combined with folic acid on patients with chronic fatigue syndrome, also known as myalgic encephalomyelitis (ME). In our survey of 38 patients, we identified two groups based on their response: Good and Mild responders. Good responders received more frequent and higher doses of B12, leading to significant improvements in their symptoms.
However, Mild responders, many of whom took pain medications, reported minimal progress. Overall, while some patients showed benefits, the effectiveness of B12 treatment varies widely, and further research is needed to understand optimal dosages and drug interactions.
However, Mild responders, many of whom took pain medications, reported minimal progress. Overall, while some patients showed benefits, the effectiveness of B12 treatment varies widely, and further research is needed to understand optimal dosages and drug interactions.
Read More
8
We recently came across an intriguing study that highlighted the potential benefits of a combination therapy involving lofepramine, L-phenylalanine, and vitamin B12 for patients suffering from multiple sclerosis (MS). Conducted as a randomized, placebo-controlled double-blind trial, the research aimed to evaluate how this combination could help alleviate various symptoms associated with MS and chronic pain.
While this study did address the role of vitamin B12, it was examined alongside lofepramine and phenylalanine. This makes it challenging for us to pinpoint the specific impact of vitamin B12 in the context of chronic fatigue syndrome on its own. The treatment showed effectiveness in improving symptoms within just two to four weeks, but due to the combination of treatments, we need more focused studies to assess vitamin B12's distinct role.
Overall, it's exciting to see a potential link between this therapy and symptom relief, yet we must remain cautious about attributing the benefits solely to vitamin B12, given the blended approach of the therapy used in the trial.
While this study did address the role of vitamin B12, it was examined alongside lofepramine and phenylalanine. This makes it challenging for us to pinpoint the specific impact of vitamin B12 in the context of chronic fatigue syndrome on its own. The treatment showed effectiveness in improving symptoms within just two to four weeks, but due to the combination of treatments, we need more focused studies to assess vitamin B12's distinct role.
Overall, it's exciting to see a potential link between this therapy and symptom relief, yet we must remain cautious about attributing the benefits solely to vitamin B12, given the blended approach of the therapy used in the trial.
Read More
7
Vitamin B12 shows unclear benefits
We explored the effect of vitamin B12 on individuals diagnosed with chronic fatigue syndrome. The study focused on assessing how this vitamin might alleviate the symptoms associated with the condition. While many participants underwent concurrent treatments, which complicates isolating vitamin B12's specific impact, the research still provides insightful data.
Participants were monitored to see if vitamin B12 made a notable difference in fatigue levels and overall well-being. However, it appeared that the results were not overwhelmingly positive. The concurrent treatments among participants diluted our ability to assess the true effectiveness of vitamin B12 on its own, leading to an inconclusive outcome.
While we acknowledge the interest in vitamin B12 as a potential remedy for chronic fatigue syndrome, the findings suggest no significant benefits can be attributed to it directly. More focused research might be necessary to fully understand how—or if—vitamin B12 can support those dealing with this challenging syndrome.
Participants were monitored to see if vitamin B12 made a notable difference in fatigue levels and overall well-being. However, it appeared that the results were not overwhelmingly positive. The concurrent treatments among participants diluted our ability to assess the true effectiveness of vitamin B12 on its own, leading to an inconclusive outcome.
While we acknowledge the interest in vitamin B12 as a potential remedy for chronic fatigue syndrome, the findings suggest no significant benefits can be attributed to it directly. More focused research might be necessary to fully understand how—or if—vitamin B12 can support those dealing with this challenging syndrome.
Read More
7
We observed that a group of twelve outpatients, all women diagnosed with both fibromyalgia and chronic fatigue syndrome, participated in a study focused on understanding the role of vitamin B12 in their condition. While most of their blood lab results were normal, one significant finding stood out: all patients had elevated levels of homocysteine in their cerebrospinal fluid.
The study found a noteworthy link between these increased homocysteine levels and the degree of fatigue experienced by the patients. Moreover, low levels of vitamin B12 in the cerebrospinal fluid were correlated with feelings of fatigue, suggesting that vitamin B12 might play a vital role in how these patients feel day-to-day.
The researchers concluded that the elevation of homocysteine in the central nervous system could be indicative of fibromyalgia and chronic fatigue syndrome. They suggested that a deficiency in vitamin B12 might hinder the body's ability to regulate homocysteine, contributing to the symptoms of fatigue these patients experience. However, while vitamin B12 is shown to be important in this context, the study does not specifically isolate its effects from other contributing factors or treatments.
The study found a noteworthy link between these increased homocysteine levels and the degree of fatigue experienced by the patients. Moreover, low levels of vitamin B12 in the cerebrospinal fluid were correlated with feelings of fatigue, suggesting that vitamin B12 might play a vital role in how these patients feel day-to-day.
The researchers concluded that the elevation of homocysteine in the central nervous system could be indicative of fibromyalgia and chronic fatigue syndrome. They suggested that a deficiency in vitamin B12 might hinder the body's ability to regulate homocysteine, contributing to the symptoms of fatigue these patients experience. However, while vitamin B12 is shown to be important in this context, the study does not specifically isolate its effects from other contributing factors or treatments.
Read More
User Reviews
USERS' SCORE
Good
Based on 15 Reviews
8
- All Reviews
- Positive Reviews
- Negative Reviews
7.5
Relieves brain fog
451 people found this helpful
I have tried sublingual B-12s before but never saw much difference, until I tried this one. I had a huge relapse of my chronic fatigue syndrome and was desperate for something to help with my debilitating brain fog. The day after I started taking it, I noticed about a 90% reduction in my brain fog and a boost in morning energy. I plan to experiment with taking it in the afternoon too. Each individual reacts differently, but I am very pleased with my results. This B-12 is a solid choice; I will continue to use it.
Read More
7.5
Aids absorption
16 people found this helpful
I took this vitamin B12 due to a deficiency from gastrointestinal issues. It's delicious with a strawberry flavour, and I’m now repeating at 1000 mcg to help with my chronic fatigue syndrome and overall nutrient absorption.
Read More
9
Life-changing supplement
8 people found this helpful
Excellent product; it has been invaluable for managing my chronic fatigue syndrome and fibromyalgia. I truly can't live without it.
Read More
9
Remarkable improvement
7 people found this helpful
Since starting B12 supplements for my chronic fatigue syndrome, the improvement has been astounding. I've been taking it for several months and have no plans to stop.
Read More
10
Relief from symptoms
2 people found this helpful
Though not diabetic, I experienced severe burning feet. After taking Jarrow B12, I found complete relief from the burning, and my restless legs improved significantly. I'm very grateful for this product!
Read More
Frequently Asked Questions
7.5
Boosted energy levels
2 people found this helpful
I had debilitating chronic fatigue syndrome for 3.5 years. Once I started B12, it made a significant difference in my lethargy after about three weeks. I even noticed a healthy glow returned to my face.
9
Improved energy levels
What a difference! I felt fatigued all the time, and my blood tests showed a low vitamin B12 level. After two and a half months on Jarrow's Methyl B12, my levels more than doubled. It's a great product!
9
Enhanced cognitive function
1 people found this helpful
For three years, I've taken this supplement as part of my ME/CFS protocol. It lifted the fog of my chronic fatigue syndrome and allowed me to enjoy activities like sudoku again.
9
Reduced nerve pain
1 people found this helpful
With chronic nerve pain, I replaced painkillers with Jarrow B12 lozenges. Within a week, I noticed a huge increase in my pain tolerance and a significant reduction in nerve pain.
9
Remarkable improvement
7 people found this helpful
Since starting B12 supplements for my chronic fatigue syndrome, the improvement has been astounding. I've been taking it for several months and have no plans to stop.
10
Relief from symptoms
2 people found this helpful
Though not diabetic, I experienced severe burning feet. After taking Jarrow B12, I found complete relief from the burning, and my restless legs improved significantly. I'm very grateful for this product!
9
Life-changing supplement
8 people found this helpful
Excellent product; it has been invaluable for managing my chronic fatigue syndrome and fibromyalgia. I truly can't live without it.
7.5
Aids absorption
16 people found this helpful
I took this vitamin B12 due to a deficiency from gastrointestinal issues. It's delicious with a strawberry flavour, and I’m now repeating at 1000 mcg to help with my chronic fatigue syndrome and overall nutrient absorption.
8
We investigated the use of vitamin B12 nasal drops in adults with chronic fatigue syndrome (CFS) over three months. A total of 51 patients participated, and we measured their vitamin B12 levels alongside physical activity and fatigue scores.
Remarkably, two-thirds of the participants experienced positive results, including increased activity and better overall scores on fatigue measures. While responders showed significant improvements, the non-responders had only minor increases in vitamin B12 levels.
This indicates that vitamin B12 nasal drops could be a beneficial alternative to injections for many CFS patients.
Remarkably, two-thirds of the participants experienced positive results, including increased activity and better overall scores on fatigue measures. While responders showed significant improvements, the non-responders had only minor increases in vitamin B12 levels.
This indicates that vitamin B12 nasal drops could be a beneficial alternative to injections for many CFS patients.
8
We evaluated the impact of B12 injections combined with folic acid on patients with chronic fatigue syndrome, also known as myalgic encephalomyelitis (ME). In our survey of 38 patients, we identified two groups based on their response: Good and Mild responders. Good responders received more frequent and higher doses of B12, leading to significant improvements in their symptoms.
However, Mild responders, many of whom took pain medications, reported minimal progress. Overall, while some patients showed benefits, the effectiveness of B12 treatment varies widely, and further research is needed to understand optimal dosages and drug interactions.
However, Mild responders, many of whom took pain medications, reported minimal progress. Overall, while some patients showed benefits, the effectiveness of B12 treatment varies widely, and further research is needed to understand optimal dosages and drug interactions.
7
We observed that a group of twelve outpatients, all women diagnosed with both fibromyalgia and chronic fatigue syndrome, participated in a study focused on understanding the role of vitamin B12 in their condition. While most of their blood lab results were normal, one significant finding stood out: all patients had elevated levels of homocysteine in their cerebrospinal fluid.
The study found a noteworthy link between these increased homocysteine levels and the degree of fatigue experienced by the patients. Moreover, low levels of vitamin B12 in the cerebrospinal fluid were correlated with feelings of fatigue, suggesting that vitamin B12 might play a vital role in how these patients feel day-to-day.
The researchers concluded that the elevation of homocysteine in the central nervous system could be indicative of fibromyalgia and chronic fatigue syndrome. They suggested that a deficiency in vitamin B12 might hinder the body's ability to regulate homocysteine, contributing to the symptoms of fatigue these patients experience. However, while vitamin B12 is shown to be important in this context, the study does not specifically isolate its effects from other contributing factors or treatments.
The study found a noteworthy link between these increased homocysteine levels and the degree of fatigue experienced by the patients. Moreover, low levels of vitamin B12 in the cerebrospinal fluid were correlated with feelings of fatigue, suggesting that vitamin B12 might play a vital role in how these patients feel day-to-day.
The researchers concluded that the elevation of homocysteine in the central nervous system could be indicative of fibromyalgia and chronic fatigue syndrome. They suggested that a deficiency in vitamin B12 might hinder the body's ability to regulate homocysteine, contributing to the symptoms of fatigue these patients experience. However, while vitamin B12 is shown to be important in this context, the study does not specifically isolate its effects from other contributing factors or treatments.
7
Vitamin B12 shows unclear benefits
We explored the effect of vitamin B12 on individuals diagnosed with chronic fatigue syndrome. The study focused on assessing how this vitamin might alleviate the symptoms associated with the condition. While many participants underwent concurrent treatments, which complicates isolating vitamin B12's specific impact, the research still provides insightful data.
Participants were monitored to see if vitamin B12 made a notable difference in fatigue levels and overall well-being. However, it appeared that the results were not overwhelmingly positive. The concurrent treatments among participants diluted our ability to assess the true effectiveness of vitamin B12 on its own, leading to an inconclusive outcome.
While we acknowledge the interest in vitamin B12 as a potential remedy for chronic fatigue syndrome, the findings suggest no significant benefits can be attributed to it directly. More focused research might be necessary to fully understand how—or if—vitamin B12 can support those dealing with this challenging syndrome.
Participants were monitored to see if vitamin B12 made a notable difference in fatigue levels and overall well-being. However, it appeared that the results were not overwhelmingly positive. The concurrent treatments among participants diluted our ability to assess the true effectiveness of vitamin B12 on its own, leading to an inconclusive outcome.
While we acknowledge the interest in vitamin B12 as a potential remedy for chronic fatigue syndrome, the findings suggest no significant benefits can be attributed to it directly. More focused research might be necessary to fully understand how—or if—vitamin B12 can support those dealing with this challenging syndrome.
References
- van Campen CLM, Riepma K, Visser FC. Open Trial of Vitamin B12 Nasal Drops in Adults With Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Comparison of Responders and Non-Responders. Front Pharmacol. 2019;10:1102. doi:10.3389/fphar.2019.01102
- Regland B, Forsmark S, Halaouate L, Matousek M, Peilot B, et al. Response to vitamin B12 and folic acid in myalgic encephalomyelitis and fibromyalgia. PLoS One. 2015;10:e0124648. doi:10.1371/journal.pone.0124648
- Loder C, Allawi J, Horrobin DF. Treatment of multiple sclerosis with lofepramine, L-phenylalanine and vitamin B(12): mechanism of action and clinical importance: roles of the locus coeruleus and central noradrenergic systems. Med Hypotheses. 2002;59:594.
- Devitt NF. Chronic fatigue syndrome. JAMA. 1998;279:432.
- Regland B, Andersson M, Abrahamsson L, Bagby J, Dyrehag LE, et al. Increased concentrations of homocysteine in the cerebrospinal fluid in patients with fibromyalgia and chronic fatigue syndrome. Scand J Rheumatol. 1997;26:301.
- Wiebe E. N of 1 trials. Managing patients with chronic fatigue syndrome: two case reports. Can Fam Physician. 1996;42:2214.
- Demitrack MA, Engleberg NC. Chronic fatigue syndrome. Curr Ther Endocrinol Metab. 1994;5:135.
