A recent review article emphasizes that vitamin B12 is not just important for red blood cell production, but it also plays a major role in maintaining:
Myelin sheath integrity (protective covering around nerves)
Neuronal repair and regeneration
DNA synthesis
Cellular energy metabolism
Deficiency symptoms:-
Study shows that neurological symptoms may develop without classic megaloblastic anemia, which can be translated as, B12 deficiency can be missed if clinicians rely only on CBC findings. The Early neurological manifestations are
Peripheral neuropathy
Memory impairment/cognitive decline
Depression and mood disturbances
Gait/balance problems
Subacute combined degeneration of the spinal cord in severe cases
Traditional diagnosis:-
Traditionally, B12 deficiency was linked mainly to elevated homocysteine and impaired methylation. But this review suggests other mechanisms, including:
Oxidative stress
Mitochondrial dysfunction
Inflammatory pathway activation
Direct neuronal damage pathways
Inference:-
Early detection matters because some neurological damage can become irreversible if prolonged, and so we need:
Prompt detection
Early supplementation/treatment when deficiency is suspected.
We mainly focus on the symptoms that is why the cause remains unexplored . The main cause of vit B12 deficiency is the weak digestive power. For Ex. A person , presents with the above symptoms , we as a doctor take a good history etc . Now we advice them to have a non vegeterian meals , but we ignore that the person already has those meals but still does not manage to meet the desired values of Vit. b12 . That’s why we need to focus on the digestive health as well .
The Common symptoms of B12 deficiency includes feeling tired, tingling sensation of hands and legs , memory loss, confusion etc . But people suffering from these symptoms are unaware of the deficiency they are suffering, and most of it is discovered by accident.
Vitamin B12 is not only crucial for central nerve tissues and blood cell formation; it keeps our nails, skin, and hair healthy. We must include vitamin B12-rich food in our diet.
An important reminder that vitamin B12 deficiency is not just about anemia. It extends beyond hematological manifestation. Neurological symptoms like peripheral neuropathy, cognitive decline, mood disturbances may occur even in absence of anemia. So timely supplementation is crucial to irreversible damage.
Very informative. It’s so important to remember that symptoms appear even without anemia and that makes early diagnosis important. Timely awareness and supplements should be started to prevent irreversible change.
