I'm reading @Batch's Vitamin D suggestions. Question: Is there a specific bioavailable D3 you recommend? And is this D3 or D3 and K? I have lengthly, chronic migraines (not CH). I found this board because a friend suggested researching microdosing psilocybin, and I am looking for connections between CH and migraines--and anything that's working for anyone. This D3 post made me reconsider my past D approach. In the past, I've tried both 5000mg and 10,000mg of D. And, I threw in (isolated and together) magnesium, some B's for good luck. I eat clean, tried keto, the whole shebang. Then, I learned (genetic testing and reports) that I'm of the genetic type that doesn't absorb D/magnesium/choline well. So, if D/magnesium aren't getting into my bloodstream well, then I'm not really trying them. I'm going to try again, but if there's a "best" absorbable D (like I found with magnesium), I'd love any thoughts. And Melissa, this is an old thread,, so I hope you're cured.