Ethnicity: Higher prevalence among Northern European and Caucasian populations
That is the evidence gap, stated plainly: the mechanism is well-motivated and the preclinical signal is consistent, but no human study has confirmed that any of it translates to people, at any dose, by any route
A diagnostic, therapeutic, metabolic, or clinical material
An injection bypasses that route
Common symptoms can include: Extreme fatigue Lethargy Loss of appetite headaches Feeling faint or dizzy Breathlessness Headaches Heart palpitations Tinnitus Additional symptoms of B12 deficiency can include psychological problems such as low mood, irritability, depression, cognitive changes, or blurred memory
doi:10.1038/sj.ijo.0801740 What is AOD 9604 (5mg)