To the Editor We read with great interest a recent article by Yang et al.1 This pooled analysis investigated the associations of dietary fiber and yogurt intakes with lung cancer risk. The authors reported that dietary fiber and yogurt intakes were associated with reduced risk of lung cancer. Considering the associations between them remain unclear, this evidence-based research may help to guide practice. However, several issues might have compromised the strength of the evidence of this analysis.
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Wu Q, Leung EL. Association of Dietary Fiber and Yogurt Consumption With Lung Cancer Risk. JAMA Oncol. 2020;6(5):788. doi:10.1001/jamaoncol.2020.0261
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