What are the recommended nutritional modifications when formulating diets for geriatric felines? In my recent review of available literature and clinical guidelines, I have observed that aging cats often exhibit altered energy metabolism, decreased digestive efficiency, and a predisposition to diseases such as chronic kidney disease and hyperthyroidism. Given these factors, should nutritional strategies focus on increasing highly digestible proteins and moderate lipid content while ensuring adequate hydration and caloric density? How might the inclusion of functional ingredients, such as omega-3 fatty acids and antioxidants, benefit the management of age-associated inflammation and metabolic health in these patients? Additionally, for cats with comorbidities (e.g., renal insufficiency), what adjustments to protein sources or amounts have shown to be both safe and effective in preserving lean body mass without exacerbating underlying conditions?
Your insights and references to recent studies or clinical trials in this domain would be highly valuable in refining these dietary guidelines for geriatric care.