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.
Excess vitamin D can also damage the kidneys. The upper limit for vitamin D is 1,000 to 1,500 IU/day for infants, 2,500 to 3,000 IU/day for children 1-8 years, and 4,000 IU/day for children 9 years and older, adults, and pregnant and lactating teens and women.Vitamin D toxicity almost always occurs from overuse of supplements.upplements of both vitamin D 3 (at 700â800 IU/day) and calcium (500â1,200 mg/day) have been shown to reduce the risk of bone loss and fractures in elderly people aged 62â85 years.