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How to Check for Healthy B12 Levels So, if the normal B12 levels for adults and children dont mean much, then how do you actually test for B12 deficiency

doi:10.1016/j.ijporl.2012.11.037

Key considerations include the type of B12, dietary compatibility, cost and additional nutrients

The National Institute of Health (NIH) shares that the recommended dietary allowance (RDA) for vitamin B12 is: Infants 06 months: 0.4 microgram Infants 712 months: 0.5 microgram Toddlers 13 years: 0.9 microgram Children 48 years: 1.2 micrograms Children 913 years: 1.8 micrograms Adult men and women over age 14: 2.4 micrograms Women who are pregnant: 2.6 micrograms Women who are breastfeeding: 2.8micrograms For adults over 50 years old, the NIH recommends taking a daily vitamin B12 supplement or consuming foods fortified with vitamin B12

Studies show that the prevalence of B12 deficiency is higher among these groups