Diabetic DietDietDietary CarbohydratesBlood GlucoseDiet, Carbohydrate-RestrictedCarbohydratesDiabetes Mellitus, Type 1Carbohydrate MetabolismDiabetes MellitusDietary FatsDiabetes Mellitus, Type 2Diet, ReducingDiet, Fat-RestrictedDietary ProteinsDiabetes Mellitus, ExperimentalBody WeightDiet FadsInsulinEnergy IntakeDiabetic RetinopathyDiabetic NephropathiesDiabetes ComplicationsTriglyceridesDietary FiberGlucoseStarchDiet, High-FatFastingLipidsObesityEatingAnimal FeedRats, Inbred StrainsFructoseLiver