Diabetic DietDietDietary CarbohydratesBlood GlucoseDiet, Carbohydrate-RestrictedCarbohydratesCarbohydrate MetabolismDietary FatsDiet, ReducingDiet, Fat-RestrictedDietary ProteinsBody WeightDiet FadsEnergy IntakeMealsDietary FiberDiabetic RetinopathyInsulinDiabetic NephropathiesTriglyceridesEatingAnimal FeedStarchDiet, High-FatGlucoseFastingLipidsPostprandial PeriodSucroseRats, Inbred StrainsFructoseDiabetes Mellitus, Experimental