In this section
Vitamin D is essential for bone and muscle health, and there is evidence it is important in other aspects of health. Vitamin D refers to both D3 (cholecalciferol) and D2 (ergocalciferol) - D3 is produced in the skin through the action of UVB in sunlight, it is the most common form in food and the form available in supplements. Mushrooms contain small amounts of D2.
Sunlight is the most important source of vitamin D, and is estimated to provide 90% of vitamin D in humans.1
Diet is usually a poor source of vitamin D most Australians only get around 10% of their vitamin D from dietary sources.3
25(OH)D is used to measure vitamin D status. The recommended 25(OH)D level is >= 50 nmol/L at all ages and during pregnancy/lactation.
In the absence of sun exposure, recommended intakes are:4
Refugee-background communities may have multiple risk factors for low vitamin D, e.g. dark skin, covering clothing and limited time outside.
400 IU daily
400-600 IU daily, OR 3000-4000 IU once weekly, OR 150,000 IU at the start of Autumn