Quote Originally Posted by wellshii
I stick to 5k weekly. Back when I was 20 I had low D, my test was barely in the 470 range.
5000/week? Better than nothing, but you can definitely up that. I was doing 1000 IU's/day and my D level was at 50.6. Haven't had BW done with the 3000/day dose yet, but I would guess it's at ~70

If you up your D, up your magnesium otherwise sides may occur. Also K