To the Editor In their recently published systematic review and meta-analysis of 9 prospective studies totaling 307 099 participants, Qian and colleagues1 found benefits of plant-based dietary patterns in the primary prevention of type 2 diabetes. These findings carry the potential to create a healthier food environment for persons at a higher risk of developing diabetes via well-planned dietary interventions. However, we are concerned about 2 methodological aspects of this systematic review and meta-analysis.
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Deng X, Niu W. Plant-Based Dietary Patterns and Incidence of Type 2 Diabetes. JAMA Intern Med. 2019;179(11):1603–1604. doi:10.1001/jamainternmed.2019.4860
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