nb: according to research, ms risk decreases at levels over ~40 ng/mL (100 nmol/L). while you are working to get to that level, work hard on mineral balancing. esp. with any supplements.
I had a particularly rough time with magnesium (thought I was balancing and timing my intake just fine, but it can be pretty complex), and it went on for a couple years of NO FUN.
as I understand things, risk of hypercalcemia increases at serum 25-hydroxyvitD3 levels ~50 and higher. be careful with combining vit D and calcium supplements - hypercalcemia risk seems to be higher with excess calcium supplementation.
Dangerous nutrition? Calcium, vitamin D, and shark cartilage nutritional supplements and cancer-related hypercalcemiahttp://my.clevelandclinic.org/Documents ... rition.pdf
I'm looking for studies that compare serum calcium and serum vit D *without* calcium supplementation being in the picture, but that isn't working out so far!
this study includes a table showing a drop-off in bone mineral density at serum vit D levels above 40 ng/mL or 100 nmol/L.
Estimation of optimal serum concentrations of 25-hydroxyvitamin D for multiple health outcomeshttp://ajcn.nutrition.org/content/84/1/18.full
figure 1 Regression plot of difference in bone mineral density by 25-hydroxyvitamin D [25(OH)D] concentrations in younger (20–49 y; A) and older (≥50 y; B) adults after adjustment for sex, age, BMI, smoking, calcium intake, estrogen use, month of vitamin D measurement, and poverty income ratio. ...http://ajcn.nutrition.org/content/84/1/ ... nsion.html
I'd love to know what some of their other serum mineral levels were (zinc, mag?) and if that would influence BMD findings at higher vit D levels...