5000 IU is high dose. 10,000 is really high. A more moderate dose would be 1000 to 2000 daily. If you live in a northern state, your Vitamin D level will vary with season. And with increased use of sunscreen (which is a good thing), it can be hard to get enough Vitamin D. I'm not opposed to anyone taking Vitamin D (I take it actually). I just want people to take it in moderation unless there is a very clear reason for taking high doses (and there are indications for that).

My wife and I take 60000 IU twice a month. Not as a daily dosage. Would this still constitute as high dosage? We don't get a lot of sunlight here, and we don't step out that often these days.

What is the current scientific consensus on how to take Vitamin D? Daily doses? Single very large doses spaced every fortnight?

I've tried searching the internet before about Vitamin D and it's surprisingly confusing, both about dosage as about intake routine. Also confusing that daily requirements are contested to be way off to our real needs, it's just a lot of misinformation lingering around that I, as a layman, can't really parse it.