I am a kidney transplant patient and have been for 10 years..my potassium hovers just around 5 -5.3 and my nephrologist has recommend I watch my potassium intake..my other reading are generally normal. I have been drinking 4-5 ounces of orange juice for years and now have been asked to cut it out mostly. I substituted cranberry juice and noticed recently that it has little or no vitamin C..I Ned to know what kind of juice can I take with breakfast which will keep potassium intake low but vitamin C at normal levels.?