Muscle cramps

[Zen]

This

She's suggesting vitamin D because D helps you absorb calcium more efficiently. That's precisely why they add vitamin D to milk. The calcium may help your muscle cramps. So it can't hurt to take extra calcium supplements WITH your vitamin D.

and this

If you are craving salt (the salsa and tortilla chips you mention), your body might be trying to tell you something.
... The longer I work in healthcare, the more convinced I am that our bodies usually send us out clues about the cause or solution we should be investigating.

are indisputable pieces of advice.

Drink lots.

Calcium, sodium, and potassium are the three electrolytes responsible for firing a muscle neuron. Remember this from anatomy class ?