Diet Quality, Liver Steatosis, and Advanced Fibrosis in US Adults by Obesity Status

Background: Diet has the potential to modulate non-alcoholic fatty liver disease (NAFLD), but its association in adults with obesity is complex. We investigated the relationship between two diet quality indices and NAFLD in adults with and without obesity from the National Health and Nutrition Examination Survey (NHANES). Methods: We analyzed data on 3165 adults from the 2017-2018 NHANES cycle who underwent vibration-controlled transient elastography with controlled attenuation parameter (CAP). The association between the Dietary Approaches to Stop Hypertension (DASH), and Alternative Healthy Eating Index (AH El-2010) score (highest vs. lowest quartiles), with liver steatosis (CAP score of ≥248 dB/m) and advanced fibrosis (≥F3) were examined in stratified analyses by body mass index (BMI) status (≥30,