b12 injection dosage for chronic fatigue Shots Adults: How Much and How Often B12 Shot Guide: Benefits, Dosage

Large-scale, well-designed trials with proper randomization and blinding are needed to determine whether high-dose oral supplementation is as effective as intramuscular injection for increasing vitamin B 12 status and alleviating clinical symptoms of vitamin B 12 deficiency

L., Guo, J

It works on the output side of the energy balance equation: it modifies how the body handles the fat tissue once the caloric environment has produced a deficit

B12 is also required for the production of healthy red blood cells and normal circulation during pregnancy

Plus, these tests measure total B12 rather than the active form your body can actually use