To study the effect of dietary Mg2 content on TRPM6 and
TRPM7 expression in kidney and colon, we fed C57BL6 mice (12 wk of
age) for 10 d a Mg2-deficient diet (0.005% wt/wt Mg), a Mg2-normal
diet (0.19% wt/wt Mg), or a Mg2-enriched diet (0.48% wt/wt Mg;
SSNIFF spezialdia¨ten GmbH).