People who are on diabetic and cardiac diets need to manage their carbohydrate and salt intake. Adding vegetables, plant protein, healthy fats and limited fruits can be helpful.
Here is a natural frame work of a whole-foods diet plan: https://nutriliving-images.s3.amazonaws.com/documents/pdf/180_Cleanse_2016.pdf
For renal diet, because we are unsure what stage you are at, it needs to be better monitored but in general, you need to be careful of potassium and phosphorus that can be high in fruit and vegetables. Some of the foods that you need to be careful of are listed in this article: http://nephcure.org/livingwithkidneydisease/diet-and-nutrition/renal-diet/