Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Negatives of drinking lucozade or any other energy drink in presence of renal failure are they contain just empty calories without vitamins, fibre, etc empty calories are harmful for your body. They contain preservatives which are harmful as some may not get eliminated during dialysis and they get accumulated in your body. They contain acids which will accumulate in your body till next dialysis and cause harm. It can cause fluid load and your between dialysis weight gain may be too much will need to remove more water during dialysis and other issues but if you like it and want to drink take little to satisfy your taste buds and that too before going for dialysis. Hope I have answered your query. Let me know if I can assist you further.