The idiot took 83X the RDA of Vitamin D.
Drinking 83X the amount of water you need will kill you, too.
5,000iu is just right.
I've been doing just fine with 2,000 IU of Vitamin D - have taken it daily for 20 years. I also get lots of sunshine and eat plenty of eggs and fatty fish.
There are people who always have to overdo a good thing. I know people who spend a couple hundred dollars a month on all sorts of vitamins and gimmicky supplements.
If you eat well and get some exercise, all you really need for supplements is Vitamin D, C and Zinc.
I take 5000 i.u. /day. My last blood test showed my D3 level was 52ng/ml exactly where it should be.
I take 25,000 IU daily, per doctor’s orders. No ill effects.
The wife and I take 4,000 units a day, have for years on the recommendation of our doctor. He checks our D and calcium blood level at every physical and it has stayed constant for each of us over these years. It has not taken any fiddling to keep the same level. Logic says that we are getting neither too little nor too much.
Our doctor is very up to date and knowledgeable on nutritional supplements and we have full confidence in him.