Vitamin B12 is a water soluble vitamin which has a wide range of function including DNA synthesis and myelination of neurons. A new research study published by University of Oslo has shown yet another vital role of Vitamin B12 in neurological diseases. People suffering from early stage cognitive impairment called Mild Cognitive impairment(MCI) and impending dementia will benefit from the new discovery.The findings of the research have shown Vitamin B12 to be effective in preventing Alzheimer’s disease, especially in those who have high level of homocysteine in their body. Homocysteine is an amino acid, which is thought to be involved in the formation of neurofibrillary tangles in the neurons, thus disrupting the communication between neurons and giving rise to AD. There is a direct proportional relation between increased blood homocysteine level and the rise in mild cognitive impairment.
An elevated level of homocysteine can be reduced by administering Vitamin B12. It can be administered orally, or via injection. But the dose of Vitamin B12 in these persons must be higher than the normal dietary requirement.
What are the sources of Vitamin B12?
Sources of Vitamin B12: Sea foods like salmon, shrimps, sardines; milk and milk products; eggs,red meat and liver and legumes. Vegetarians must be careful to avoid dietary deficiency of Vitamin B12. It’s advisable for the vegetarians to take Vitamin B12 capsules. Similarly, elderly people and those who consume excessive alcohol might have poor absorption of this vitamin. In these cases, it’s better to check your Vitamin B12 level regularly and take the parenteral (injection) form of Vitamin B12.