b12 injection intramuscular or subcutaneous vitamin Store How to Perform a of Vitamin B12 Vitamin B12 Injections | B12

Yes, a blood test is usually recommended to confirm a deficiency before starting treatment

They work best as part of a broader wellness plan guided by a qualified provider

If youre vegan or mostly plant-based, oral or sublingual B12 is usually enough long term shots are typically for documented deficiency or absorption issues (NIH ODS)

So if someone is low in B12 and they consume alcohol, they not only don't have enough B12 to help 'clear away' the alcohol toxins but they also risk increasing homocysteine levels which I believe is that feeling of heat/hangover that can persist when there isn't enough B12 to reset the body