Most people naturally produce satisfactory amounts of vitamin D through everyday dietary ingestion of vitamin D (in certain foods like eggs, fish, and cheese) and normal photochemical conversion with the vitamin D3 precursor seven-dehydrocholesterol from the skin via exposure to daylight. Macam-Macam Kandungan Promavit Dan salah satunya seperti Promavit, https://australianu864tbl2.jasperwiki.com/user