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By the time it's recognized that you have B12 deficiency, you probably only realize your levels are lower now than they've been for some time now
In this case, a B12 injection might help
Some formulations may also include additional B vitamins or L-carnitine depending on your provider's recommendation
Because B12 touches so many systems, a deficiency can produce a wide range of symptoms that affect you both physically and mentally
PMID: 30547302 Guo EL, Katta R
Advances in Nutrition
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