extreme fatigue after b12 injection Why Do I Feel Worse My Why do I feel worse

(PubMed) Chrysant SG, Chrysant GS

Shortness of breath and dizziness : This can be due to the decrease in red blood cells, because one of the other things vitamin B12 does is help with the production of red blood cells

It works by targeting the enzyme NNMT, which is linked to fat storage and metabolic slowdown

Serum B12 reference ranges vary between laboratories, but generally, levels below 148 pmol/L are considered deficient, whilst levels between 148258 pmol/L are regarded as borderline and may warrant further investigation or a trial of treatment, particularly if symptoms are present

Its targeted mechanism makes it relevant in studies focused on weight management and metabolic health