Abstract
Background & aimsIn 2019, the EAT-Lancet Commission promoted a plant-based diet, emphasizing its potential to enhance human health and environmental sustainability. Nevertheless, a thorough evaluation of health benefits associated with EAT-Lancet diet requires robust statistical backing. This synthesis seeks to compile evidence related to the effects of the EAT-Lancet diet on major cardiovascular disease (CVD) and mortality. MethodsA systematic review and meta-analysis were conducted utilizing data from MEDLINE, EMBASE, PubMed, Web of Science, and medRxiv, covering the period from January 2019 to October 8, 2024. We included all cohort and case–control studies that investigated the association between the emerging EAT-Lancet diet and outcomes such as diabetes, CVD, all-cause mortality, and cancer. Summary effect size estimates are presented as hazard ratios (HRs) and were analyzed using random-effects models. Study heterogeneity was assessed with the Q statistic and I2 statistic. Subgroup analyses were performed to identify potential sources of variability, while publication bias was evaluated using Begg's and Egger's tests. Additionally, sensitivity analyses were conducted to assess the robustness of the results. ResultsWe identified 28 publications that included a total of over 2.21 million participants. Adhering to the EAT-Lancet dietary patterns was negatively associated with diabetes, CVD (mortality), all-cause mortality, and cancer (mortality), with HRs of 0.78 (95 % CI: 0.65–0.92), 0.84 (95 % CI: 0.81–0.87), 0.83 (95 % CI: 0.78–0.89), and 0.86 (95 % CI: 0.80–0.92), respectively. Significant heterogeneity was observed for diabetes (I2 = 94.0 %), all-cause mortality (I2 = 85.5 %), and cancer incidence (I2 = 79.3 %). Importantly, no evidence of publication bias was found for any of the clinical outcomes analyzed. Sensitivity analyses confirmed the robustness of the results across various dietary scoring systems for CVD mortality, all-cause mortality, and cancer. ConclusionFollowing the EAT-Lancet diet was significantly associated with reduced odds of diabetes, CVD, cancer and mortality. These findings are clinically important, highlighting the beneficial effects of the recent EAT-Lancet diet on various health outcomes.
Published Version
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