However, there have been cases of people breaking out into acne and rosacea and having heart palpitations after taking very high doses of vitamin B12, usually by injection
These ranges come from animal-data extrapolation and informal reports, not controlled human trials, and the two routes are not directly interchangeable
Prescription Requirements and Medical Supervision First, you need a doctors prescription for B12 injections
PD is considered as a pro-inflammatory state of the brain mainly due to the abnormal activation of microglia and astrocytes (Fuzzati-Armentero et al
Studies show higher rates of B12 deficiency in people taking metformin at doses of 1,000 mg per day or more
This article examines the evidence, appropriate clinical indications, potential risks, and NHS guidance on B12 treatment and weight management