Overview

SCIENTIFIC SCORE
Questionable
Based on 9 Researches
6.8
USERS' SCORE
Good
Based on 3 Reviews
8.6
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
Vitamin B-12 (as Cyanocobalamin)
2,500 mcg
104,167%

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.
Read More
8
Vitamin B12 benefits in CFS patients
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.
Read More
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.
Read More

Most Useful Reviews

9.5
Improved sleep quality
In recent years, I have experienced chronic fatigue and nerve tingling, which have impeded my normal work activities. The doctor suggested a higher dosage of vitamin B12, and after over a month, the nerve pain gradually vanished. I now enjoy good sleep quality and feel less fatigued. This is vital for my health. 21st Century B12 is a high-dose and cost-effective product that I will continue to use.
Read More
9.5
Significant energy boost
The Amazing B12 Sublingual Tablets have been transformative for my energy levels! As someone who often suffers from fatigue, these tablets have become essential in my daily life. The convenience of sublingual administration is splendid; I simply place a tablet under my tongue, where it quickly dissolves, allowing for immediate absorption. Since I began taking them, I have experienced a noticeable enhancement in my energy throughout the day, eliminating that mid-afternoon slump. I feel more focused and alert during lengthy meetings. Most importantly, the energy boost feels natural and sustained, without jitters or crashes. The tablets also taste pleasant, making them easy to take. I wholeheartedly recommend B12 Sublingual Tablets for anyone dealing with chronic fatigue or seeking natural energy support.
Read More
7.5
Product helps fatigue
I have been battling chronic fatigue for a long time, and I have occasionally received vitamin B12 injections. Currently, there is a shortage of injections in this country, so I purchased this product, which helps alleviate my fatigue.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 9 Researches
6.8
  • All Researches
8
Vitamin B12 benefits in CFS patients
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.
Read More
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.
Read More
8
Vitamin B12 drops show promise
We examined the impact of vitamin B12 nasal drops on individuals suffering from myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Our study involved fifty-one patients, predominantly female, with an average age of 42 and an average illness duration of 16 years.

After three months of treatment, we measured their vitamin B12 serum levels, physical activity, and fatigue and concentration levels. Interestingly, we found that the participants who responded positively to the treatment experienced significant improvements in their vitamin B12 levels, daily step count, and overall physical activity. Moreover, those who reported a positive response noted a decrease in fatigue levels.

On the flip side, those categorized as non-responders had only a modest increase in vitamin B12 levels, with no notable improvement in other measures. Overall, our findings suggest that nasal drops could serve as a viable alternative to vitamin B12 injections, especially since around two-thirds of participants reported feeling better after treatment. This pilot study opens up new avenues for interventions in managing ME/CFS and highlights the importance of considering alternative treatment methods.
Read More
We explored the effects of frequent vitamin B12 injections in patients suffering from chronic fatigue syndrome (CFS), also known as myalgic encephalomyelitis (ME). The study included 38 patients who received B12 injections at least weekly for a period ranging from six months to several years.

Our findings revealed two groups of patients: those termed "Good responders" and "Mild responders." Good responders, who reported feeling significantly better, used higher doses and more frequent injections of B12, alongside daily oral folic acid tailored to their individual needs.

Interestingly, the results indicated that Mild responders often relied on pain medications like opioids, which might interfere with B12’s effects. We noted that co-existing thyroid issues were common among these patients, suggesting a complex interaction at play.

Overall, our study points to a real potential benefit from vitamin B12 and folic acid in managing chronic fatigue symptoms. However, individual responses can vary greatly, and it’s crucial to consider each patient's unique circumstances when designing future clinical studies.
Read More
8
Potential effects on chronic fatigue
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.
Read More

User Reviews

USERS' SCORE
Good
Based on 3 Reviews
8.6
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Improved sleep quality
In recent years, I have experienced chronic fatigue and nerve tingling, which have impeded my normal work activities. The doctor suggested a higher dosage of vitamin B12, and after over a month, the nerve pain gradually vanished. I now enjoy good sleep quality and feel less fatigued. This is vital for my health. 21st Century B12 is a high-dose and cost-effective product that I will continue to use.
Read More
9.5
Significant energy boost
The Amazing B12 Sublingual Tablets have been transformative for my energy levels! As someone who often suffers from fatigue, these tablets have become essential in my daily life. The convenience of sublingual administration is splendid; I simply place a tablet under my tongue, where it quickly dissolves, allowing for immediate absorption. Since I began taking them, I have experienced a noticeable enhancement in my energy throughout the day, eliminating that mid-afternoon slump. I feel more focused and alert during lengthy meetings. Most importantly, the energy boost feels natural and sustained, without jitters or crashes. The tablets also taste pleasant, making them easy to take. I wholeheartedly recommend B12 Sublingual Tablets for anyone dealing with chronic fatigue or seeking natural energy support.
Read More
7.5
Product helps fatigue
I have been battling chronic fatigue for a long time, and I have occasionally received vitamin B12 injections. Currently, there is a shortage of injections in this country, so I purchased this product, which helps alleviate my fatigue.
Read More

Frequently Asked Questions

Chronic Fatigue Syndrome (CFS), also known as Myalgic Encephalomyelitis (ME), is a complex and debilitating condition characterized by profound fatigue that doesn’t improve with rest and worsens with physical or mental activity. This crippling fatigue is often accompanied by a variety of symptoms, including sleep disturbances, cognitive difficulties, muscle pain, and joint pain. Unlike typical tiredness, the fatigue experienced in CFS is long-lasting, and it can significantly hinder everyday activities and overall quality of life.

The precise cause of CFS remains unknown, but it is believed to be influenced by a combination of genetic, environmental, immunological, and psychological factors. Diagnosis primarily relies on a careful assessment of symptoms, as there are no definitive laboratory tests available. Treatment options focus on symptom management and may include lifestyle changes, physical therapy, medication for pain management, and cognitive behavioral therapy. Given the complexity and variability of the condition, individuals with CFS should consult healthcare professionals who specialize in this area to develop personalized management strategies.

Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays a crucial role in several vital functions in the human body. It is essential for red blood cell formation, neurological function, and DNA synthesis. Naturally occurring in animal products, the vitamin can be found in high concentrations in meat, fish, eggs, and dairy, making it particularly important for those following a vegetarian or vegan diet, as plant-based sources of B12 are limited and often require supplementation.

A deficiency in vitamin B12 can lead to serious health issues, including anemia, fatigue, memory problems, and nerve damage. Due to its significance, it's crucial for individuals, particularly those at risk of deficiency, to ensure adequate intake through diet or supplementation. For most adults, the recommended daily allowance (RDA) is around 2.4 micrograms, though pregnant or breastfeeding women may require higher amounts. If you're considering B12 supplements, it's advisable to consult with a healthcare provider to determine the best option for your specific needs and health status.

While there is no definitive cure for Chronic Fatigue Syndrome (CFS), some studies suggest that Vitamin B12 may play a supportive role in managing symptoms for certain individuals. B12 is essential for the production of red blood cells and the proper functioning of the nervous system, and deficiencies can lead to fatigue, weakness, and other health issues. For individuals with a B12 deficiency, supplementation may alleviate some fatigue-related symptoms. However, it’s important to note that not all CFS patients have low B12 levels, and supplementation should only be considered after consulting with a healthcare professional.

It's important to approach B12 supplementation thoughtfully. High doses can sometimes be unnecessary or even lead to side effects, and the effectiveness of B12 in alleviating fatigue can vary from person to person. For those suffering from CFS, a comprehensive treatment plan tailored to the individual's needs, including dietary adjustments, lifestyle changes, and possibly psychological support, may prove more beneficial overall. As always, speaking with a healthcare provider who is knowledgeable about CFS is key to determining the best approach for managing this complex condition.

According to user reviews, the timeline for experiencing results from vitamin B12 supplements can vary, but many users report noticeable improvements in energy levels within a few weeks. For instance, one reviewer mentioned that after over a month of taking a higher dosage of vitamin B12, they observed a gradual vanishing of nerve pain and improved sleep quality, leading to reduced fatigue ((Read Review)). Another user highlighted the transformative impact of sublingual tablets, where they felt a significant enhancement in energy throughout the day, effectively eliminating afternoon slumps shortly after starting the supplementation ((Read Review)).

In conclusion, while individual experiences can vary, many users seem to find relief and increased energy levels reasonably quickly, often within the first few weeks of regular use. If you are considering this supplement for Chronic Fatigue Syndrome, you may want to give it at least a month to assess its effectiveness on your symptoms.

The use of vitamin B12, particularly through nasal drops and injections, shows some promise in managing symptoms of Chronic Fatigue Syndrome (CFS), although the evidence is mixed. One study found that approximately two-thirds of participants using vitamin B12 nasal drops reported significant increases in physical activity and reduced fatigue levels after three months of treatment [3]. However, not all patients responded positively, and those categorized as non-responders saw minimal improvements. In another analysis involving vitamin B12 injections, results were similarly varied; some patients classified as "Good responders" benefited significantly from higher and more frequent doses, while "Mild responders" showed limited improvement, indicating individual responses can differ greatly [4].

Overall, while there is some supportive data regarding vitamin B12's role in alleviating symptoms for certain individuals with CFS, the research highlights a need for further studies to better understand its efficacy and the optimal administration methods. As many studies also include concurrent treatments, isolating the specific impact of vitamin B12 remains challenging [6]. Therefore, if you're considering vitamin B12 for chronic fatigue, it may be beneficial to consult with a healthcare professional to weigh the potential benefits against the variable nature of responses.

Based on user reviews, many individuals have reported significant improvements in their symptoms after using vitamin B12 supplements. For example, one user noted that after taking a higher dosage for a month, their chronic nerve pain diminished, leading to better sleep quality and reduced fatigue ((Read Review)). Another reviewer praised the transformative effects of sublingual tablets, highlighting a notable boost in energy throughout the day that effectively eliminated afternoon slumps, contributing to enhanced focus and alertness during work meetings ((Read Review)).

While results can vary widely among users, it appears that those struggling with chronic fatigue may experience natural energy boosts and relief from other related symptoms with consistent use of B12 supplements. Some users, including one who relied on injections, turned to oral supplements as an alternative and noted that these products have been beneficial in alleviating fatigue. As always, it's important to consult a healthcare professional to determine the right approach for your individual health needs.

Users have reported positive experiences when combining vitamin B12 supplements with other approaches to manage Chronic Fatigue Syndrome. One reviewer highlighted the effectiveness of higher doses of vitamin B12, noting that it not only alleviated their chronic nerve pain but also significantly improved their sleep quality and reduced fatigue after consistent use for over a month ((Read Review)). Another user praised the Amazing B12 Sublingual Tablets for providing a natural and sustained energy boost throughout the day, eliminating the typical mid-afternoon slump, which is a common struggle for those dealing with chronic fatigue ((Read Review)).

Additionally, some users have turned to oral B12 supplements as alternatives during shortages of injections, finding that these forms of supplementation effectively alleviate symptoms of fatigue. One individual, who had relied on injections in the past, reported that the oral supplements could still help manage their fatigue levels effectively, demonstrating their versatility and importance in maintaining energy for daily activities ((Read Review)). Overall, these reviews suggest that when integrated into a broader strategy for dealing with Chronic Fatigue Syndrome, vitamin B12 can complement other treatments and support improved energy levels.

Users report that higher dosages of vitamin B12 may be beneficial for treating Chronic Fatigue Syndrome. One reviewer mentioned that after a doctor's recommendation to increase their B12 intake, they experienced a gradual reduction in nerve pain and a notable improvement in sleep quality and fatigue levels, indicating the effectiveness of a high-dose regimen (Read Review). Another user found that sublingual B12 tablets significantly enhanced their energy, effectively mitigating fatigue and leading to a more alert and focused state throughout the day (Read Review).

While experiences vary, many users suggest that vitamin B12 could play a crucial role in combating chronic fatigue, particularly when higher doses are utilized or when injections are not readily available. One reviewer noted that, due to the unavailability of B12 injections, they opted for a supplement that helped alleviate their fatigue, further underscoring the importance of B12 in their treatment plan (Read Review). Overall, those managing chronic fatigue seem to find tangible benefits in higher doses of vitamin B12.

9.5
Improved sleep quality
In recent years, I have experienced chronic fatigue and nerve tingling, which have impeded my normal work activities. The doctor suggested a higher dosage of vitamin B12, and after over a month, the nerve pain gradually vanished. I now enjoy good sleep quality and feel less fatigued. This is vital for my health. 21st Century B12 is a high-dose and cost-effective product that I will continue to use.
9.5
Significant energy boost
The Amazing B12 Sublingual Tablets have been transformative for my energy levels! As someone who often suffers from fatigue, these tablets have become essential in my daily life. The convenience of sublingual administration is splendid; I simply place a tablet under my tongue, where it quickly dissolves, allowing for immediate absorption. Since I began taking them, I have experienced a noticeable enhancement in my energy throughout the day, eliminating that mid-afternoon slump. I feel more focused and alert during lengthy meetings. Most importantly, the energy boost feels natural and sustained, without jitters or crashes. The tablets also taste pleasant, making them easy to take. I wholeheartedly recommend B12 Sublingual Tablets for anyone dealing with chronic fatigue or seeking natural energy support.
7.5
Product helps fatigue
I have been battling chronic fatigue for a long time, and I have occasionally received vitamin B12 injections. Currently, there is a shortage of injections in this country, so I purchased this product, which helps alleviate my fatigue.
8
Vitamin B12 drops show promise
We examined the impact of vitamin B12 nasal drops on individuals suffering from myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Our study involved fifty-one patients, predominantly female, with an average age of 42 and an average illness duration of 16 years.

After three months of treatment, we measured their vitamin B12 serum levels, physical activity, and fatigue and concentration levels. Interestingly, we found that the participants who responded positively to the treatment experienced significant improvements in their vitamin B12 levels, daily step count, and overall physical activity. Moreover, those who reported a positive response noted a decrease in fatigue levels.

On the flip side, those categorized as non-responders had only a modest increase in vitamin B12 levels, with no notable improvement in other measures. Overall, our findings suggest that nasal drops could serve as a viable alternative to vitamin B12 injections, especially since around two-thirds of participants reported feeling better after treatment. This pilot study opens up new avenues for interventions in managing ME/CFS and highlights the importance of considering alternative treatment methods.
We explored the effects of frequent vitamin B12 injections in patients suffering from chronic fatigue syndrome (CFS), also known as myalgic encephalomyelitis (ME). The study included 38 patients who received B12 injections at least weekly for a period ranging from six months to several years.

Our findings revealed two groups of patients: those termed "Good responders" and "Mild responders." Good responders, who reported feeling significantly better, used higher doses and more frequent injections of B12, alongside daily oral folic acid tailored to their individual needs.

Interestingly, the results indicated that Mild responders often relied on pain medications like opioids, which might interfere with B12’s effects. We noted that co-existing thyroid issues were common among these patients, suggesting a complex interaction at play.

Overall, our study points to a real potential benefit from vitamin B12 and folic acid in managing chronic fatigue symptoms. However, individual responses can vary greatly, and it’s crucial to consider each patient's unique circumstances when designing future clinical studies.
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.

References

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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.
  6. Devitt NF. Chronic fatigue syndrome. JAMA. 1998;279:432.
  7. 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.
  8. Wiebe E. N of 1 trials. Managing patients with chronic fatigue syndrome: two case reports. Can Fam Physician. 1996;42:2214.
  9. Demitrack MA, Engleberg NC. Chronic fatigue syndrome. Curr Ther Endocrinol Metab. 1994;5:135.
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