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  • Dr Ashleigh Bhanjan

B12 Boost : Unlocking the Power of Vitamin B12 for Neurological Health

Updated: Jun 26




As an Integrative Neurologist, when considering the use of Vitamin B12 in neurological conditions, it's crucial to understand its multifaceted functions and applications.


Vitamin B12, also known as cobalamin, plays a vital role in DNA stability, myelin synthesis, nerve metabolism, and neuronal regeneration within the nervous system.


Deficiencies in Vitamin B12 can lead to various neurological diseases and cognitive impairments, emphasizing the importance of adequate intake for maintaining a healthy nervous system.


Functions of Vitamin B12 in Neurological Health


Myelin Synthesis: Vitamin B12 is essential for the synthesis of myelin, the protective sheath around nerves that facilitates fast conduction velocity


Neurotransmitter Synthesis: It acts as a coenzyme in the synthesis of neurotransmitters crucial for synaptic transmission, impacting cognitive function and neurological health


DNA Stability: Vitamin B12 plays a key role in DNA stability, essential for genetic replication and transcription within nerve cells.



Applications in Neurological Conditions:


- Vitamin B12 deficiency can lead to peripheral neuropathy, causing symptoms like tingling, numbness, and weakness in the extremities

- Vitamin B12 supplementation has shown to have a beneficial impact on neurological function and nerve regeneration in individuals with peripheral neuropathy due to B12 deficiency


- Vitamin B12 deficiency can cause a progressive degenerative disease of the spinal cord, leading to demyelination in the dorsal and lateral columns.

- Early treatment with Vitamin B12 can lead to excellent improvement in symptoms, while delayed treatment may result in incomplete recovery.


- Vitamin B12 deficiency can affect the visual pathways, leading to prolonged visual evoked potentials, which can improve with Vitamin B12 treatment


- Some studies have associated Vitamin B12 deficiency with conditions like Alzheimer's disease, Parkinson's disease, and various forms of dementia

- Vitamin B12 therapy may lead to improvement in dementia in some patients, potentially by optimizing neurotransmitter synthesis and reducing homocysteine levels


- Vitamin B12 deficiency has been linked to various psychiatric problems, including depression, delusions, cognitive changes, mania, and psychosis.

- The proposed mechanisms involve impairment of neurotransmitter synthesis and increased homocysteine levels, which may be improved with Vitamin B12 supplementation



   - Some research has indicated that vitamin B12 may play a role in the pathogenesis of MS, and IV vitamin B12 therapy has been explored as a complementary treatment option.


It's important to note that the evidence for the causal relationship between Vitamin B12 deficiency and some of these neurological conditions remains controversial, and more research is needed.
However, the available evidence suggests that Vitamin B12 supplementation can be a valuable therapeutic approach in managing various neurological disorders associated with Vitamin B12 deficiency.

Benefits of Intravenous Vitamin B12 Therapy


Enhanced Energy Levels : IV therapy with Vitamin B12 has been shown to enhance energy levels, supporting overall health and well-being.


Neurological Health : Vitamin B12 supplementation has been explored for its potential benefits in neurological health, including the treatment of conditions such as multiple sclerosis, Parkinson's disease, myalgic encephalomyelitis, autism, and amyotrophic lateral sclerosis


Metabolic Functions : IV therapy with Vitamin B12 can optimize metabolic functions, which is particularly important for individuals with conditions such as diabetic neuropathy, back pain, and mouth ulcers.


Cognitive Function : Vitamin B12 has been studied for its potential role in cognitive function, including Alzheimer's disease, with some studies suggesting a beneficial impact on cognitive function, particularly when combined with folate


In conclusion, Vitamin B12's diverse functions and applications in neurological health make it a valuable component in the management of various neurological conditions.
Understanding its role in myelin synthesis, neurotransmitter function, and DNA stability underscores its significance in promoting optimal neurological function and health.

Advantages of Intravenous Vitamin B12 Therapy over Conventional Therapy


Compared to oral or intramuscular vitamin B12 supplementation, intravenous administration offers several advantages:


1. Improved Bioavailability : IV administration ensures that a higher percentage of the vitamin B12 is absorbed and utilized by the body, as it bypasses the gastrointestinal tract.


2. Faster Onset of Action : Intravenous delivery allows for a more rapid increase in vitamin B12 levels, which can be particularly beneficial in cases of severe deficiency or neurological symptoms.


3. Overcoming Absorption Issues : Individuals with certain gastrointestinal conditions or malabsorption disorders may not be able to effectively absorb vitamin B12 from oral or intramuscular routes, making IV therapy a more suitable option.




Latest Scientific Research


Recent studies have explored the potential benefits of intravenous vitamin B12 therapy in neurological conditions:


1. A 2020 systematic review and meta-analysis published in the Journal of the American College of Nutrition found that IV vitamin B12 supplementation significantly improved nerve conduction velocity and reduced neuropathic pain in patients with diabetic peripheral neuropathy.


2. A 2019 study in the Journal of the Neurological Sciences demonstrated that IV vitamin B12 therapy improved cognitive function and reduced the risk of dementia in older adults with vitamin B12 deficiency.


Vitamin B12 deficiency has long been associated with a wide variety of hematological, neurological, and psychiatric disorders, including dementia.


The incidence of low Vitamin B12 levels among dementia patients has been found to range between 29% and 47%, highlighting the potential impact of Vitamin B12 deficiency on cognitive function.


Vitamin B12 deficiency can cause cognitive impairment, including impairments in thinking, and has been linked to a range of mental and psychological changes, from mood alterations to cognitive deficits and even psychotic episodes.


Treatment and Reversibility


Parenteral Vitamin B12 substitution has shown improvement in elderly patients suffering from cognitive impairment and psychotic symptomatology likely related to cobalamin deficiency, emphasizing the potential reversibility of symptoms with Vitamin B12 supplementation.


Mental symptoms, including cognitive dysfunction, have been reported to be partially or completely reversible after cobalamin substitution, especially if symptoms persist for less than a year, highlighting the importance of early intervention for optimal outcomes.



3. A 2018 pilot study in the Multiple Sclerosis Journal suggested that IV vitamin B12 administration may have a positive effect on fatigue and quality of life in patients with relapsing-remitting multiple sclerosis.


In conclusion, intravenous vitamin B12 therapy has shown promise in the management of various neurological conditions, offering potential advantages over conventional oral or intramuscular supplementation.
Further research is ongoing to fully elucidate the therapeutic potential of this approach.
Contact Dr. Ashleigh Bhanjan, Integrative Neurologist, to setup a tailored management plan for you.
A guide to Integrative therapies link here

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