Kimchi friend or foe: preserving cultural foods developed pre-refrigeration

Objective In this commentary, we examine whether kimchi acts primarily as a risk factor or a protective dietary component for gastric cancer. Methods By breaking kimchi down into individual ingredients, we summarize evidence on the potential protective and carcinogenic effects. Results Epidemiologic findings on kimchi and gastric cancer remain inconsistent, likely due to variation in sodium content, fermentation practices, and overall dietary patterns. Conclusions We propose that reducing sodium content while preserving traditional fermentation methods may enhance the health benefits of kimchi while lowering preventable cancer risk. This commentary highlights the importance of culturally informed dietary strategies for gastric cancer prevention.