After adjusting for age, gender, smoking status, physical activity (MET 24 h), total cholesterol, HDL‐cholesterol, AST, ALT levels, diabetes, and hypertension status, our multiple linear regression analysis shows a significantly positive association between the presence of NAFLD and an increase in QTc increment in both genders (standardized β coefficient = 2.56 ms, 95% CI: 0.49–4.64; p = .015). The gene discussed is GPT; the disease is diabetes mellitus.