Thanks for the query.
With the information you have provided, It is difficult to provide a definite answer to your first question, ie whether your father can come off dialysis
. This really depends on how his kidneys are functioning. This can be determined by finding out his urine output in a day and also specialised tests like 44 hour creatinine
clearance test. His pre-dialysis lab results will also help.
The second part of the query: there is no evidence to prove that drinking any particular juice cures kidney failure. In fact drinking too much juice can increase the potassium levels in patients undergoing dialysis.
Hope this helps