PNPLA3 and metabolic dysfunction-associated steatotic liver disease: Only baechu kimchi, a salty food, had a significant protective interaction with the PNPLA3 genotype with respect to high sodium intake: a high intake of baechu kimchi significantly decreased the risk of NAFLD, with a greater magnitude in the PNPLA3 risk allele group than in the PNPLA3 non-risk allele group.