MICHAEL HORLICK 3 | Blood vitamin D: 25OHD greater than 75 nml/L? ZERO risk of osteomalacia
presents episode 836 | Dr Michael Horlick
Don’t worry about toxicity until
OVER 375 nmol/L [150 ng/mL] Study: US post-menopausal women
begin to plateau: 75 nmol/L
3 times higher risk: elevated PTH
when not above 75 nmol/L
avg: US wintertime
-25 OHD 47.5 nmol/L
-25 OHD 65 nmol/L
Live in South? peak: same
nadir, a little higher
PTH [parathyroid hormone] peaks 4 weeks after 25 OHD
at lowest level
Study 675 German accident
-blood 25OHD levels
Some had normal bone mass, but
LOTS OF OSTEOID
[bone disease of low vitamin D] Recommendation:
keep blood level above 75 nmol/L
“Healthy Germans, did not know it,
HAD UNDERLYING BONE DISEASE”
24% of healthy adults
-at 52 nmol/L had
When above 75 nmol/L:
ZERO VITAMIN D BONE DISEASE
Original Youtube: https://youtu.be/NuWC2d0mTbo
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