Is it ok to use splenda in a renal failure person with diabetes, and what is a good diet for them?

My father jus went under surgery for renal failure, and is now in recovery. I’m trying to provide a proper diet for him but afraid to use some things because of his diebetes. Just to be clear, i’m in india right now, so the nutrionalists here aren’t well knowledgable for things that aren’t a curry [...] http://bit.ly/nNQIrj