Vitamin D
RDA (Recommended Daily Allowance)
Males and females between the ages of 19 & 70: 600 IU (International Units)
The best sources for vitamin D include salmon, tuna, mackerel, and fish liver oils. There are also small amounts of vitamin D found in beef liver, cheese, egg yolks, and mushrooms.
* The U.S. milk supply has been fortified with 100 IU (International Units) of vitamin D per serving.
Vitamin D regulates calcium in the body and maintains strong bones, as well as promotes muscle development.