Interesting paper...
Serum ionized magnesium and calcium
and sex hormones in healthy young men:
importance of serum progesterone level
FERTILITY AND STERILITYt
VOL. 72, NO. 5, NOVEMBER 1999
American Society for Reproductive Medicine
"Given that the levels of Mg (magnesium) and total Mg in the menopausal
women were inversely related to the concentrations of
estrogen (7), it was surprising that the levels of Mg in the
men were directly and significantly related to the levels of
progesterone (P,.05) (Fig. 1). In addition, the Ca/Mg
ratios were inversely related to the progesterone concentrations
(P,.05) (Fig. 2). These significant relations between
progesterone and Mg levels as well as the Ca/Mg
ratios did not seem to be affected by the racial composition
of our population, at least with respect to whites and blacks.
The number of Asians (n 5 3) was too small to use for a
statistically valid pool. We found no relations or correlations
(P..05) between levels of the cations and testosterone or
estrogen or between levels of the sex steroids and total Mg
in young men, either at face value or normalized for body
mass index."
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Is this one of the mechanisms that explain why Mg tends to help sleep and relaxation?
