Vitamin B12: Functions, Sources, Deficiency Symptoms And Risk Factors
There are eight B vitamins, vitamin B12 is one of them. It plays an important role in the production or red blood cells, DNA, nerve tissue, and other functions. Your body doesn’t produce vitamin B12 (like many other vitamins) which means that you need to have enough of it in your diet. Recommended dietary allowance (RDA) is the following: adolescents over age 14 and adults – 2.4 mcg per day, pregnant women – 2.6 mcg per day, lactating women – 2.8 mcg per day.