A recent review by researchers from the University of Coimbra in Portugal has highlighted a potential benefit of the ketogenic (keto) diet beyond weight loss: its possible protective effects against neurodegenerative diseases like Alzheimer’s, Parkinson’s, and Huntington’s. The keto diet, which emphasizes fats and proteins while minimizing carbohydrates, may influence brain health by altering the body’s metabolism and how it processes glucose.
The findings indicate that the ketogenic diet could activate several biological mechanisms that support brain function, particularly in conditions linked to glucose metabolism issues. For example, ketones, generated by the body during ketosis, might serve as an alternative energy source for neurons, potentially aiding in neuronal stability and function. Additionally, the diet has been associated with reduced inflammation, enhanced autophagy (cellular cleanup), and beneficial changes in gut bacteria.
Despite these promising insights, the authors caution that most existing studies have been conducted on animals, and further clinical trials are essential. Moreover, the keto diet can be challenging to adhere to and may lead to undesirable side effects such as constipation, insomnia, and increased cholesterol levels. Concerns about its long-term effects raise questions about its safety and sustainability as a treatment strategy.
Overall, this review sheds light on the potential therapeutic relevance of the ketogenic diet in managing neurodegenerative diseases, but emphasizes the need for further research to fully understand its implications.
