June 2007 meeting

[tiki-download_file.php?fileId=1468]

One table from the PDF

Confirmed 2011

Australia Doctor, April 2011

For those with no or minimal exposure to sunlight, Australian recommendations set an

adequate intake (AI) of 5µg a day for adults aged 19-50, (200 IU)

rising to 10µg a day for 51-70-year-olds and (400 IU)

15µg a day for those over 70. (600 IU)

An upper level (UL) has been set at 80µg a day. (3200 IU)

The higher levels for older people are because the efficiency of production via the skin declines with age.

The AI for adults (19-50 years) for Australia was based on the amount of vitamin D required to maintain serum vitamin D at a level of at least 27.5nmol/L with minimal exposure to sunlight. Exposure to sunlight would be expected to increase levels.

See also VitaminDWiki

• Published Recommendations from around the world IU and ng - which includes the following chart