Vitamin B12 Deficiency: Nerves & Big RBCs! "Sir, haath pair mein jhanjhanahat (tingling) kyu hoti hai?" If your patient is a strict vegetarian complaining of nerve pain and fatigue, Cobalamin (vitamin B12) and Folate Deficiency Province of British Columbia VITAMIN B12 INJECTION 1000 mcg mL How Much Vitamin B12 Should I Take Per Day? B12 Dosage Everlywell Vitamin B12 Injection Dosage Guide: 7 Essential Dosage Facts for Adults Liv Hospital