I've been taking Vit D3 and K2 for about a year (40,000iu a week of D3). A blood test at the end of January showed my D3 was 250nmol/L. The GP said to stop taking it until after the summer then start taking 800iu a day.
From looking at other posts it seems 100 - 150 nmol/L is the optimal range. How long will it take my levels to get down to this and should I take more than 800iu when I start again?
(Also, I'm in Scotland - we don't have summer!)