Q: has anyone here experienced the same weird "hockey stick" phenomenon while supplementing with D3? what were your blood levels (dosage, before, after)? could you identify any clear factors that may have influenced/caused this jump? maybe adding vitamin A, K, or Ca/Mg? or maybe the villi tips (where the vitamin D receptors are located) just healed from going gluten free?
I got about 30 minutes of sun with no shirt all summer near solar noon and I've been taking 5000IU since October or so. I just had blood drawn today for vitamin D among other things, so I'll report back with the result as soon as I get it.
I started taking 10k IU about 6 months ago. I didn't have an opportunity to get baseline bloodwork done when I started, but I just got tested at 120ng/ml. (I also lost about 45 pounds in that time.) Since my "tank" seems to be full and the sun is starting to come out I'm going to stop supplementing and see where my levels are 6 months from now.
Vitamin D is stored in your fat cells, so if you have lost any weight it could have effected your Vitamin D levels.
If you keep taking Vitamin D then your ability to store it just fills up, it would make sence to end up taking a maintance dose after that. Larger people normally are required to take more vitamin D to raise then their levels then a smaller person would.