The Dietary Reference Intake (DRI) of vitamin B12 varies depending on your age and your particular needs. In males and females ages 14 and over, the DRI is 2.4 micrograms (mcg) per day. That number goes up to 2.6 mcg during pregnancy and 2.8 mcg during breast-feeding.
Mini Bio (1) Philip Fowler is an actor, known for FairyTale: A True Story (1997), Far from the Madding Crowd (1998) and Signs of Life (1999). Other Works | Publicity Listings | Official Sites | Contact Info.
Gregory E. Sierra is an associate economist and Timothy J. Yeager is an economist and senior manager at the Federal Reserve Ban k of St. Louis. The authors thank workshop participants at the Federal Reserve Board of Governors, the Federal Reserve Banks of Kansas City and Chicago, the.