When should you be tested for vitamin B12?
Two recent patient experiences prompted this post. In the Wall Street Journal, Dana Hawkins-Simons described several years of being seen by specialist after specialist for her complaints of tiredness, dizziness, ringing in the ears, palpitations, shortness of breath and “brain fog.” She finally researched her symptoms and demanded that she be checked for vitamin B12 deficiency, which turned out to be the cause of her symptoms.
Recently, the …
When should you be tested for vitamin B12?






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