For weeks I was getting cramps that woke me up in the middle of the night. It felt like my legs were trying to tear themselves in half. I tried a salt supplement that has been advertising a lot on social media. That fixed it immediately, but I wasn’t happy with that solution because I had to subscribe, I didn’t know if I was getting the correct amount (it’s one size fits all), and I wasn’t sure about the other ingredients. Every day I drink two cups of coffee and for rest of the day drink nothing but reverse osmosis water. Lots of water. At some point I became suspicious about all that RO water. I can’t remember why I started thinking about that. As an experiment I started drinking water from the regular tap. It’s well water that has been softened and filtered, but hasn’t been through RO. It’s been about three weeks now with no cramps.