crude liver b12 injections Are Vitamin Shots Right for You? Livkon 99 ml liquid Injection

Reference ranges for children and adults of black family background are higher than these

When B12 runs low, symptoms tend to creep in slowly enough to get blamed on something else: persistent fatigue, brain fog, low mood, weight gain or difficulty losing weight, weakness, tingling in the hands or feet, shortness of breath, and a weakened immune system

doi: 10.3945/ajcn.111.013458

The only thing I could find re: when to vaccinate after getting the virus is that you should wait 90 days for vaccine if you had monoclonal antibodies or blood plasma

The goal of this study was to compare the efficacy and safety of NASO B12 with oral methylcobalamin tablets in treating the deficiency of vitamin B12 in patients receiving metformin for the management of diabetes