Older injection technique s taught pulling back the plunger to check for blood before injecting
Affected people cannot cure or manage the condition at home by taking over-the-counter (OTC) vitamin B12 supplements or eating foods rich in vitamin B12
A simple blood test and talk with your doctor can accurately tell you whether you are deficient or not
PubMed , Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline , National Academies Press (US), 1998
B12 deficiency develops when the body does not have an adequate amount of B12 vitamins, which are an important nutrient and serve for general well-being
Managing high B12 starts with identifying the causes of high vitamin B12, not just reducing intake