You can do anything. If there is no urine, try not to eat anything that tastes too strong, because uremia patients only control water, and eating too salty is easy to get thirsty. Don't think that you can eat fruit casually without drinking water, you can eat less, because you need nutrition, you should eat more blood, because dialysis patients generally have anemia and need calcium supplementation, iron supplementation if necessary, and occasional perfusion or hemofiltration. If not, hemofiltration is more effective.

I'm a nurse in the dialysis room. I hope this common sense will help you. Thank you.