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Peer-reviewed studies on Epithalon Khavinson VKh, Bondarev IE, Butyugov AA (2003)

It has also demonstrated protective effects in gastrointestinal and neurological injury models

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

A smaller subset responds excellently to 5 mg and sees no benefit from higher doses