That would be 5g. At this point everyone should notice that something is off. :-D
5000 mg of vitamin D3 = 200,000,000 IU (200 million IU)
Even taking more than a knife point renders a complete can undrinkable. Not to speak of 30 fucking grams.
I also had to immediately think of this case.
The author simply (and terrible mistaking) typed [mg] instead of [UI] in the first paragraph: if readed entirely, the author correct this typo in every other sentence
That is that pathway to death you are worried about?