Farshad Arsalandeh, Farnoosh Shemirani, Mohammad Ali Nazari, Parvin Mirmiran, Mahdieh Golzarand
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引用次数: 0
摘要
低碳水化合物饮食（LCD）对心理结局、生活质量（QoL）和认知的影响尚无定论。本研究通过检索PubMed/Medline、Scopus和Web of Sciences，总结了截至2024年10月的现有证据。纳入30项随机对照试验（RCTs），总样本量为1781例（LCD组923例，对照组853例）。LCD对情绪障碍、抑郁、焦虑、生活质量或记忆速度无显著影响。然而，亚组分析显示，从碳水化合物中摄入≥15%能量的受试者，以及随访超过120天的试验，生活质量显著改善。值得注意的是，LCD显著提高了神经系统疾病患者的生活质量。然而，在55岁以上的成年人中，以及那些从碳水化合物中摄取15%以上能量的人，记忆力下降的速度是不利的。结果显示LCD对生活质量、情绪、心理健康和记忆速度的影响是相互矛盾的。研究注册：CRD42023452217。
Effect of low-carbohydrate diets on quality of life, mental health, and speed of memory in adults: a systematic review and meta-analysis of randomised controlled trials.
Low-carbohydrate diets (LCD) have inconclusive impacts on psychological outcomes, quality of life (QoL), and cognition. This study summarised current evidence by searching PubMed/Medline, Scopus, and Web of Sciences until October 2024. Thirty randomised controlled trials (RCTs) were included with a total sample size of 1781 (923 in the LCD group and 853 in the control group). No significant effect of LCD on mood disturbance, depression, anxiety, QoL, or memory speed was found. Subgroup analysis, however, showed significant QoL improvement in subjects consuming ≥15% of energy from carbohydrate, and trials with follow-up over 120 days. Of note, LCD significantly increased QoL in patients with neurological disorders. However, an unfavourable decrease in memory speed was observed in adults older than 55 years, and those consuming ≥15% of energy from carbohydrate. Findings demonstrated contradictory effects of LCD on QoL, mood, mental health, and memory speed.
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The primary aim of International Journal of Food Sciences and Nutrition is to integrate food science with nutrition. Improvement of knowledge in human nutrition should always be the final objective of submitted research. It''s an international, peer-reviewed journal which publishes high quality, original research contributions to scientific knowledge. All manuscript submissions are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. All peer review is single blind and submission is online via ScholarOne Manuscripts.
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