Its core mechanisms are closely related to disorders of cellular energy metabolism, accumulation of oxidative stress, and reduced capacity for DNA damage repair
Nutrition labels may show extremely high percentages of the daily recommended amount
A rare cause is transcobalamin II deficiency, a genetic condition where your body can't transport B12 (also known as cobalamin) in your body
May be repurchased every 90 days
Although rare, adverse effects of high-dose vitamin B12 have been reported, including allergic reactions such as fever, rash, itching, hot flushes, dizziness, and nausea, across all cobalamin forms and administration routes (Caballero et al., 2007)