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Response to high dose vitamin D is limited by vitamin A - July 2013

Survey from Grassroots Health July 2013
Vitamin D response to > 20,000 IU/day
is limited when vitamin A > 5,000 IU

Survey response by 3,355 people to Grassroots Health

  • 34% of participants report taking vitamin A as retinol or retinyl palmitate in supplements.
  • Of those who take vitamin A, the average amount is 5,400 IU per day.
  • Participants who take greater than 5,000 IU of vitamin A per day have a lower vitamin D dose response than participants who take 5,000 IU or less per day,
    but the difference is not statistically significant.

PDF is attached at the bottom of this page

See also VitaminDWiki

Short url =http://is.gd/vitdvita

Attached files

ID Name Comment Uploaded Size Downloads
2845 Dose_Response_Curves_Vit_A.pdf admin 28 Jul, 2013 213.97 Kb 1045