I like the sun too, but, I live just about as far north as you can live in the lower 48 states. When I had my D level checked it was 14, base line is 40. Took me forever to get it up to 50, almost 2 years and I was taking between 5,000 and 20,000 a day. So when they say, don't take a lot of vitamin D you might overdose. It takes a long time and a lot of vitamin D to get that much if your low. Your body uses around 4000 a day and if you have any auto-immune diseases, it soaks it up.