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For those following a vegetarian or vegan diet, or who are pregnant or nursing, an organized diet that includes food and drinks fortified with B12 is essential

I am a 48 yr old nurse and received the Pfizer vaccine 1st dose on Jan 11th

This correction is important because of the relatively small volumes of distribution of these water-soluble drugs

Vitamin B12 is a powerhouse nutrient crucial for several bodily functions, including energy metabolism, nerve function, and red blood cell formation

For individuals experiencing mild gastrointestinal upset from B12 supplements (uncommon but possible with high doses), taking the supplement with breakfast may improve tolerance

In fact, any chronic GI disorder can result in low cobalamin levels