However, metabolic changes and weight loss take time
Frequency depends on your goals: Energy or immune support: weekly or biweekly
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
[16] Although cyanocobalamin lacks a defined upper-toxicity threshold due to its water solubility and renal elimination, exceptionally high cumulative doses have been temporally associated with acneiform eruptions, altered potassium homeostasis, and theoretical thrombotic risk, emphasizing the importance of evidence-based dosing
The aim of this systematic review and meta-analysis was to critically assess and compare the effectiveness of different vitamin B12 administration routes in correcting deficiency