What is the difference between a compound and a molecule? A compound is a substance that is composed from two or more different elements. Water (H 2 O), table salt (NaCl), carbon dioxide (CO 2), methane (CH 4) and chlorophyll (C 55 H 72 O 5 N 4 Mg) are a few examples of compounds. They are compounds because they each contain more than one kind of element.
Recommended Daily Intake for Optimal Health. Based on the most recent research, the current recommendation is 35 IUs of vitamin D per pound of body weight. So for a child weighing 40 pounds, the recommended average dose would be 1,400 IUs daily, and for a 170-pound adult, the dose would be nearly 6,000 IUs.
The 2008 report recommends a daily intake of vitamin D of 400 IU/day for all infants and children beginning in the first few days of life. Human milk typically contains a vitamin D concentration of 25 IU per liter or less. Therefore, a supplement of 400 IU per day of vitamin D is recommended for all breastfed infants.