oral vitamin b12 vs injection vs. B12 Injections: What Is the Difference? Frontiers | Efficacy of sublingual

The National Institutes of Health recommends the following vitamin B12 dosages for each category: Infants, Children and Teens The recommended daily vitamin B12 dosage for infants, children and teens is as follows: Birth to 6 months: 0.4 micrograms Infants 712 months: 0.5 micrograms Children 13 years: 0.9 micrograms Children 48 years: 1.2 micrograms Children 913 years: 1.8 micrograms Teens 1418 years: 2.4 micrograms Vitamin B12 is essential for many body functions in babies, children and teens, including proper growth and brain function

The 2mL ratio (producing 2.5mg/mL) is the best choice for most researchers starting out

You do get B12 in foods such as, red meat, poultry, fish, and eggs

This policy applied in CYs 2018 through 2023