How Much Beef Liver Provides Your Daily B12 Needs The UK reference nutrient intake (RNI) for vitamin B12 is 1.5 micrograms per day for adults , including during pregnancy
Al-Saleh, I., Moncari, L., Jomaa, A., Elkhatib, R., Al-Rouqi, R., Eltabache, C., Al-Rajudi, T., Alnuwaysir, H., Nester, M., Aldhalaan, H
Action of long(R3)-insulin-like growth factor-1 on protein metabolism in beef heifers
[Article] [PubMed]64
An overdose of vitamin B12 through diet is hardly possible and also not known, since the required transport protein IF (intrinsic factor) and absorption via the intestinal mucosa are two major barriers
Article written by: Doris Munoz-Mantilla, MD, FOMA, DABOM Article reviewed by: Anila Chadha MD, DABOM Family physician and Obesity Medicine physician at Dignity Health Medical Group, Bakersfield, California