>> What sort of a Vit D were you taking before? and how much were you
>> taking?
>
> I was taking a Vitamin D tablet from Standard Process, a company
> which makes professional-grade supplements for doctors. The
> product was called "Cataplex D", and I was (attempting) to
> take 3 tablets per day, or 2400 IU. But I could not tolerate
> this amount.
>
> http://www.standardprocess.com/display/StandardProcessCatalog.spi?ID=58
>
> I've previously tried 3 other brands of Vitamin D, but could not
> tolerate these either (including just plain old cod liver oil).
>
> So now my doctor has switched me to Innate Response Formulas
> Vitamin D-3, which is another doctor's brand, but this Vitamin D-3
> is a whole-foods vitamin, compared to 99.9% of the other brands
> which are synthetic:
>
> https://www.innateresponse.com/What_s_the_Difference_.html
>
> And now my dose is down to 1 tablet per day of this new
> supplement, or 400IU.
>
> Note that I have no problem with lying out in the sun --
> my problem seems to just be with supplements,
>
> Marc