Probably 6,000 IU, not 6,000 milligrams. One milligram is 40,000 IU, so 6,000 mg would be 240 million IU, or 120,000 capsules of 2,000 IU each. I don’t know the toxicity of D3, but I suspect that amount wouldn’t be good.
Yes. Sorry. I realized that after I posted it.