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That calculator is assuming "midday sun", which doesn't last for very long. (Also, I've been told that 1500 IU/day is what I should aim for.)
by cperciva 9y ago
That calculator is assuming "midday sun", which doesn't last for very long. (Also, I've been told that 1500 IU/day is what I should aim for.)
- lostlogin 9y agoThat's a lot more than the likes of the Mayo clinic recommend but presumably there is a reason for that. Even if there wasn't, nearly 3 hours outside per day in winter is not that attractive sounding.
- cperciva 9y agoMy understanding is that 600 IU/day is a "we have lots of evidence that getting less than this is bad" whereas 1500 IU/day is "we know this is completely safe, and there's some evidence that it's better than 600 IU/day". Rather like vitamin C, there's some debate about how much is optimal, but you need to take truly astounding amounts in order to cause adverse effects.