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Healthful Vegetarian diet may improve insomnia, finds study - Video
Overview
A recent cohort study, the Tzu Chi Health Study, sheds light on the potential link between dietary patterns and insomnia risk, uncovering intriguing findings about the benefits of plant-based diets in reducing the likelihood of developing insomnia. This study was published in the European Journal Of Clinical Nutrition by Zuo Hua Gan and colleagues.
Researchers aimed to explore whether plant-based diets, specifically vegetarianism, could influence the risk of insomnia. Over 5,800 participants without prior insomnia were enrolled in the study from 2007 to 2009 and followed up until 2018. Two distinct dietary classification methods were employed: traditional categorization into vegetarians and non-vegetarians, and a Healthful Plant-Based Index (hPDI) to gauge adherence to plant-based dietary patterns. Incident cases of insomnia were tracked by linking participant data with the National Health Insurance Research Database (NHIRD).
Throughout 55,562 person-years of follow-up, 464 new cases of insomnia were identified. The study revealed noteworthy associations between plant-based diets and insomnia risk. Male vegetarians exhibited a substantially lower risk of insomnia compared to non-vegetarians, showing hazard ratios (HR) of 0.47 and 0.71 for males and females, respectively.
Additionally, among male participants with the highest adherence to the healthful plant-based index (hPDI), there was a notable reduction in insomnia risk (HR 0.50) compared to those in the lowest quintile. Surprisingly, no significant association between adherence to hPDI and insomnia risk was observed in female participants.
These findings offer valuable insights into the intricate interplay between diet and sleep health, paving the way for future research exploring the mechanisms underlying these associations and potentially tailoring dietary recommendations for improved sleep outcomes.
Reference: Gan, Z. H., Chiu, T. H. T., Lin, C.-L., Lin, M.-N., & Kuo, P.-H. Plant-based dietary patterns and risk of insomnia: a prospective study. European Journal of Clinical Nutrition,2023;1–8. https://doi.org/10.1038/s41430-023-01380-x