The muscle pain you describe in you later post sounds like magnesium deficiency was being revealed. Krispin has some good magnesium information
You can't really overdose on the magnesium because as soon as you take too much the surplus ends up in the colon and because it is hygroscopic it attracts water and the result is loose stools. So at this point back down the magnesium intake to the point that stools are as soft/firm as required.
Quote:One at small amounts (2,000 iu),
If you look at the banner here you see 2000iu brings most people to just above the point they maximize calcium uptake (32ng) and are best able to fix it in bones (42ng)
Quote:the other was taking quite a bit to load her system.
But that isn't untypical. Moving up to 6000iu/daily gets most people above that 40ng/ml lowest acceptable threshold. Though there is such variability that even at higher levels their is the odd person who doesn't respond
Quote:Any ideas what might cause that?
I'd suggest inflammation in the gut. People with crohn's and celiac, gluten intolerance invariably have low vitamin D3 for this reason. I have suggested to people in this position to snip the gelatin capsule of a brand such as this
Country Life, Vitamin D3, 5,000 IU, 200 Softgels
that comes in MCT oil and massage the vitamin 3 in MCT directly into the skin.
MCT is easily absorbed and easily metabolised and as vitamin D is naturally made near the skin surface doing this MAY be an effective route for raising status in cases where orally doesn't seem to be solving the problem. As Vitamin D3 is degraded by light choose a skin that isn't subject to UV exposure.
MCT is less likely to go rancid than fish/soy/olive oil and therefore would not leave a smell.
It would be helpful if anyone who has used this massage technique for raising vitamin D status let readers know if it's successful. I can't see any logical reason why it wouldn't work. People who use Vitamin D cremes for treating skin conditions raise their 25(OH)D status. It could be useful for kids where you want to avoid those dreadful kids vitamins full of nasty sweeteners.
By coincidence I went from here to here
Where I find someone reporting back after following information provided online
Quote:I was taking 50,000 a week, and it took 6 weeks and my levels were up to 55ng (137.5nmol/l) from 30ng (75nmol/l) , so I am taking it every 2 weeks, and will check again in a few months.
I also have found that since I added 600mg of magnesium I no longer get cramps in my hips or legs or toes.. and I sleep like a lamb
I take Calcium also, 450 one in my multi and a single 250 at bedtime.
I take the 50,000 in the am,,,seems to be fine for me...
It's nice when people report back as others can read the follow up and learn from that experience although we have to remember that we are all different in many ways. 50,000iu every fortnight =3571iu/daily. But the poster lives in Alpine Calif so should be getting UVB from sunshine to support the supplemental intake.