Nice summary

It usually goes as "Vitamin D is not useful for healthy individuals" which is a nice example of circular reasoning (probably because they get enough sun exposure or have good levels of Vit. D from other sources)

Oh yeah and tests checking Vitamin D's effects on things it was never claimed to help, like "found no impact on cancer, heart disease, or stroke." (Maybe cancer, but still)

You will still get some Vit D through sun even with sunscreen on

> Yes, but skin cancer kills surprisingly few people: less than 3 per 100,000 in the U.S. each year.

Tell that to people in Australia or some other country directly below the Ozone layer hole

But the news that production of NO is more important than Vit D is certainly interesting