4 ms·
There are plenty of brands dosing at 5K, 10K, and even 50K IU. That 1000IU is common but very underdosed. IIRC the 400IU RDA came out of some error, it's 4000I
by lambdaba 4y ago
There are plenty of brands dosing at 5K, 10K, and even 50K IU.
That 1000IU is common but very underdosed. IIRC the 400IU RDA came out of some error, it's 4000IU now, but I think even that is underdosed, with many people recommending 20K as the benchmark from what the body with sufficient exposed skin produces in 20mins in the midday sun.
- zeroonetwothree 4y agoIsn’t your body producing it in a different form though?
- lambdaba 4y agoI don't think so, D3 is the animal form, which I didn't mention but it is, of course, the one you want and not D2, which does have some issues. Otherwise, I think it's more a matter of vitamin D biosynthesis also having other effects that are not resulting in just the synthesis of vitamin D.