Re: A Deficiency of D?



J

John Sankey

Guest
Thanks to Juhana, I've now been able to compare four sources:
1. United States Department of Agriculture Food Composition Database
release 17;
2. a Special Interest Group on vitamin D that reported to the USDA in
1992;
3. National Public Health Institute Nutrition Unit Fineli Food
Composition Database release 4 (Finland); and
4. Danish Institute for Food and Veterinary Research Food Composition
Databank

The USDA obviously feels it has problems with vitamin D, and has
deleted many of the vitamin D values of the SIG. It's true that
factors of 3 differences between the various sources are common.
However, it means that FINELI and DIFVR are each much more complete
sources for D than the USDA is. So, I'll be sorting out the best
agreed values for the foods I eat over the next while and use them
until something better appears.

Then it'll be on to iodine ...