Falling Leaves Means Falling Vitamin D

When the leaves change colors the availability of ultraviolet light to make vitamin D (UVB) disappears till next spring. Your vitamin D level then begins to fall along with all the leaves on the deciduous trees. Ten weeks after peak fall colors your vitamin D level is about half what it was at the … [Read more...]

Live Long and Prosper

This week saw the publication of another study showing a 26 percent greater all-cause mortality with vitamin D levels below 17.8 ng/mL when compared to vitamin D levels above 32 ng/mL in adults older than 20 from the National Health and Nutrition Examination Survey (NHANES) III (1988-1994). This … [Read more...]