2. CONTENTS 1.DEFINITION 2.FUNCTIONS 3.MAIN SOURCES 4.DEFICIENCY 5.RICKETS 6.SYMPTONS 7.TREATMENT

3. 1. VITAMIN D DEFINITION Edward Mellanby discovered vitamin D. Is a Fat-soluble vitamins. Several forms of vitamin D have been discovered: Vitamin D 2 Ergocalciferol Vitamin D 3 Cholecalciferol Vitamin D 4 22-dihydroergocalciferol Vitamin D 5 Sitocalciferol

4. 2. FUNCTIONS Vitamin D is stored in… Maintain levels of calcium and phosphorus normal. Participate in cell growth and maturation. Strengthens the immune system helping to prevent infection.

6. Vitamin D deficiency can occur when: – Daily intake is less than the recommended levels. – The kidney can not convert vitamin D into the active form – sun exposure is insufficient – Can not absorb properly at the digestive tract.

9. 5. RICKETS

10. 6. SYMPTOMS

11. 7. MEDICATION Can be treated gradually over several months or one dose of a single day. Based on a clinical trial found that a single dose of 600,000 IU of vitamin D3 orally was comparable to a dose of 20,000 IU of vitamin D3 per day orally for 30 days. The incremental dose may be 125-250 micrograms (5.000 to 10.000 IU), which are ingested daily for two to three months.

12. A single dose of one day may be 15,000 micrograms (600,000 IU) of vitamin D, which is ingested orally in 4-6 divided doses. Intramuscular injection is also an alternative for a dose of a single day. It is recommended that exposure to moderate amounts of sunlight.