Some of the serious side effects of Vitamin B12 include serous allergic reaction, narrowing or blocking of blood vessels, thrombocytosis (a disorder where your body produces too many platelets), low potassium levels in body, pulmonary edema (a condition where there is excess fluid in the lungs) and congestive heart failure
For Hereditary B12 Malabsorption If you suffer from Imerslund-Grasbeck disease, your vitamin B12 malabsorption will be treated with hydroxocobalamin injected into the muscle at a dose of 10 mg per day for 10 days followed by monthly injections for life
oral vitamin B12 supplements Youre probably wondering, whats the difference of getting vitamin B12 shots to simply taking oral vitamin supplements
Use an insulin syringe for accuracy
When not taken too late in the day, Vitamin B12 can help promote deeper, healthier sleep
A raised MMA in particular is the standard way to confirm that a deficiency is real at cell level