They do ask about water intake. Sometimes I walk away feeling confused. I carry a notebook into each appointment, and my wife is with me as an extra set of ears. I also request that instructions for changes be provided in writing. But the reality is, when I get home I feel confusion about diet. The numbers seem to change week to week. One week everything is normal and I'm told not to worry. Then next time creatinine and potassium is out of bounds and I'm back to worrying about diet. One of my problems is forgetting to take water with me in the morning. I get on a job site for 8 hours and I'm stuck. I need to secure a reusable water bottle.