I don't think that has been made official. It's still just a recommendation. I.E. not an "official" RDA yet...but something that has been suggested lately. At least not here in the US. I know that the US and Canada both use the info put forth by the Institue of Medicine and the National Academy of Sciences but the Food and Nutrient Info Center of the USDA is who sets the official values...

Keep in mind that the RDA are set with a huge buffer. The idea being that there is a huge chance that you will be getting much more than you actually need. Supplement companies love them. A lot of them are already overkill so making them even higher? The average person makes about 10,000 units of vit D within about 30 minutes of full sun exposure.

The stuff about vitamin D may well be true, but it is ironic that you have "health professionals" coming out of the woodwork accusing the gov of being paranoid when the recs were already intentionally overdone for the median needs. To me, vitamin D is the "PONY" of the nutrition industry.

Probably changes if you are elderly. You don't get as much sun exposure. Etc...but some of these recommended amounts as a general guideline are just getting ridiculous.

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If you act sanctimonious I will just list out your logical fallacies until you get pissed off and spew blasphemous remarks.