Comment · Tue, November 30, 2021 · ND Owner
Why is the DV% of vitamin E in CoQsol-CF calculated at 333%
Original post in this thread
Ratharax · 1 points
a-tocopherol has an RDA of 15 mg.
Naturally sourced, (d-a-tocopherol) has the unit conversion of 1 IU = 0.67 mg.
Synthetically sourced, (dl-a-tocopherol) has the unit conversion of 1 IU = 0.45 mg.
So in IU, the rdas are 22.4 and 33.3 IU respectively. But CoQsol-CF contains 100 IU of d-a-tocopherol, according to the ingredients, which should be the natural one, meaning that it contains 446% of the DV
Or, if the label just doesn't say that it's synthetic vitamin e in the product, then it contains 300% of the RDA.
Either way, the RDA wouldn't equal 333%, unless my math is totally off here.
source: https://ods.od.nih.gov/factsheets/VitaminE-HealthProfessional/
What they were answering
Direct reply to the original post — see the thread post above.
u/MisterYouAreSoDumb · ND Owner
It looks like the FDA changed RDIs. We created this label in under the old rulings. The dose has always been 100IU per serving. Under the original FDA guidance, that RDI was 20.1mg. The 67mg of naturally sourced E is 333% of 20.1mg. Under the new guidance, the 67mg is 446% of the new RDI of 15mg. The dose has not changed. It's just the FDA guidance has. Since this is a patented product, and the formulation has not changed, a label change request would not have been triggered for it. I will submit a label change request for it now, though!