I have a similar story (muscle cramps, extreme morning tiredness) and magnesium does wonders. I would describe magnesium oxide as a "slight" laxative and I'm pe

I have a similar story (muscle cramps, extreme morning tiredness) and magnesium does wonders. I would describe magnesium oxide as a "slight" laxative and I'm perfectly fine if i take the cheap magnesium pills a quarter at a time. YMMV