Loss of appetite is very common in CKD patient, which is generally due to build up of toxins in body.
Treatment options
1) Renal transplant, though would require evaluation for hepatitis C.
2)Continuous dialysis in a good center , extra dialysis inbetween weeks may help.
3)Good diet, kindly consult your nephrologist.
4) Ayurveda no idea.
Next Steps
S Creat, Potassium and phosphate level.