[DOI] [PMC free article] [PubMed] [Google Scholar] 57.Zhang X, Saarinen AM, Hitosugi T, Wang Z, Wang L, Ho TH, et al
B12 does not stack: once your blood level is in the normal range, extra B12 is simply passed out in your urine rather than converted into more energy
To make it clearer, heres a quick summary of the different ways you can check your B12 levels
Having a B12 deficiency for a long period of time can make you more at risk for health conditions such as dementia and infertility, so it is important to make sure that your levels are properly balanced
Sensory : pins and needles or numbness in feet and/or hands, or sometimes increased sensitivity to pain
You may feel a gentle lift in energy or clarity shortly afteror experience benefits more gradually over a few sessions