Heres the simple breakdown: Bloodstream Express: We send a strong dose of Vitamin B12, usually cyanocobalamin or methylcobalamin, through an IV, skipping your gut so it kicks in right away
doi: 10.1186/s13293-018-0193-7
Cell 49 , 730742 (2013)
This may result in sense loss, difficulty in proprioception, neuropathic pain, difficulty walking, poor balance, loss of sensation in the feet, muscle weakness, blurred vision (either due to retinopathy [27] or optic neuropathy [28] ), impaired urination, fertility problems, decreased sense of taste and smell, decreased level of consciousness, changes in reflexes, memory loss, mood swings, depression, irritability, cognitive impairment, confusion, anxiety, clumsiness, dementia, and, in more severe cases, psychosis