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Ketogenic metabolic therapy: low-carbohydrate interventions as novel neuroprotective strategies for cognitive
1Department of Endocrinology, Tongde Hospital of Zhejiang Province, Hangzhou, China.
Abstract:
Cognitive dysfunction is an increasingly recognized complication of diabetes, contributing substantially to morbidity in the aging population, yet disease-modifying therapies remain scarce. Dietary intervention, a cornerstone of diabetes management, may offer neuroprotective potential. Low-carbohydrate ketogenic diets (LCKDs), typically restricting carbohydrates to < 50 g/day, effectively improve glycemic control and metabolic health. Emerging preclinical and clinical evidence suggests that LCKDs may also confer cognitive benefits through mechanisms including enhanced mitochondrial bioenergetics, reduced neuro-inflammation, and modulation of the gut-brain axis. This narrative review critically evaluates the current evidence regarding the efficacy, mechanisms, and safety of LCKDs for managing diabetes-associated cognitive dysfunction, identifies key limitations in the existing literature, and proposes a framework for future research to enhance translational value.
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