numbness after b12 injection in arm Left numb ✋ Hand numbness is often
Description
If you need daily or weekly injections, it will add up quickly
Ethics approval This manuscript is an expert review and is exempt of ethics approval
A deficiency in Vitamin B12 can lead to fatigue and decreased energy, as your body struggles to deliver adequate oxygen to your cells

Then, keep up with injections every 1-3 months

So, by one route or another, animals must get vitamin B 12 from bacteria (and archaea)

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