Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS-SGGW), Warsaw, Poland.
Curr Opin Clin Nutr Metab Care. 2021 Jul 1;24(4):385-391. doi: 10.1097/MCO.0000000000000752.
Diet-induced ketosis has a fasting-like effect and brings the body to increase the production of ketone bodies (KB). Works over the last decades have provided evidence of the therapeutic potential of the ketogenic diet (KD). This review focus on mainly clinical research on the effectiveness of the KD and medium-chain triglycerides (MCT) supplementation in ameliorating the severity of symptoms in Alzheimer disease (AD).
A limited number of clinical studies (short-time and with a small number of participants) evaluated the role of the KD and MCT supplementation in AD as a potential dietary intervention in the therapy of this disease. These studies report that the application of KD or/and MCT supplements to older people reduces symptoms of AD. MCT supplements allow achieving an increased level of KBs in the blood even with a greater supply of carbohydrates in the diet and without any drastic changes in the habitual diet of patients.
The recent literature highlights the potential benefit of using diet-induced ketosis as an additional element of therapy in AD. Since persons with AD are at risk of malnutrition, the use of KD raises certain concerns due to side effects, especially for long periods of time. MCT supplements to obtain similar clinical results without the need for drastic changes in the diet of patients.
综述目的:饮食诱导的酮症具有类似禁食的作用,使身体增加酮体(KB)的产生。过去几十年的研究为生酮饮食(KD)的治疗潜力提供了证据。本篇综述主要关注 KD 和中链甘油三酯(MCT)补充在改善阿尔茨海默病(AD)症状严重程度方面的临床研究。
最新发现:少数临床研究(时间短,参与者少)评估了 KD 和 MCT 补充在 AD 中的作用,作为该疾病治疗的潜在饮食干预措施。这些研究报告称,KD 或/和 MCT 补充剂的应用可减轻老年人 AD 的症状。MCT 补充剂可使血液中的 KB 水平升高,即使饮食中碳水化合物的供应量增加,且患者的日常饮食也没有任何剧烈变化。
总结:最近的文献强调了将饮食诱导的酮症作为 AD 治疗的附加元素的潜在益处。由于 AD 患者存在营养不良的风险,KD 的使用由于副作用而引起了一些关注,特别是对于长时间使用而言。MCT 补充剂可以获得类似的临床效果,而无需对患者的饮食进行剧烈改变。