B12 normal but still shattered with brain fog - there's an answer says doctor View Image

Vitamin B12 deficiency can result in a host of symptoms, ranging from fatigue and brain fog to irritability and pins and needles. Despite having a normal B12 test result, some individuals may still experience these symptoms.

Dr Anshuman Kaushal, a surgeon from Apollo Delhi, suggests that the issue could be a functional B12 deficiency, often overlooked by many. In an Instagram video, he explained that this condition happens when the body has sufficient B12 in the blood, but the cells are unable to utilise it effectively.

Most standard tests only measure the total B12 level, not its active form, leading to continued health issues for those affected. However failure to accurately diagnose this proble

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