When all my limbs went numb one morning, I went to urgent care in a panic. It turned out to be a vitamin B12 deficiency.
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Most vitamin supplements are useless, but there's more evidence that vitamin D could be the exception
A vegan man whose arms went numb and who had trouble speaking had vitamin B12 levels so low they were 'undetectable'
Vitamin B12 Deficiency: An Important Reversible Co-Morbidity in Neuropsychiatric Manifestations - Thomas Gregor Issac, Soundararajan Soundarya, Rita Christopher, Sadanandavalli Retnaswami Chandra, 2015
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