A 1000 IU D3 supplement is 25mcg - (40 IU per mcg).
This puts the Simply Orange fortified 4 oz glass at 60 IU [1.5mcg].
Another thing about vitamin D supplements - taken with fat, it increases the absorption of D3.
I always try to take mine with my heavy cream, eggs or bacon.
in part, but also interestingly if you drink 4 oz of OJ, it counts as a fruit exchange, but if you drink 8 oz, it is dairy.
Hey, I don’t make up the exchange stuff, someone else does. :)