It set the daily amount at 200 international units from birth through age 50.It set the level at 400 I.U.s through age 70, and 600 for age 71 and older.

• 该机构规定，从出生到50岁，每天摄入维生素D含量为200个国际单位，到70岁每天摄入水平为400个国际单位，以及71岁以及更年长的人，每天摄入水平应为600个国际单位。