INTRODUCTION: Obesity is the primary cause of metabolic dysfunction-associated steatotic liver disease (MASLD). Healthy lifestyle management has potential value in the treatment of MASLD. METHODS: A total of 150 patients with MASLD diagnosed at the Health Management Center of our hospital were enrolled and randomly divided into a traditional treatment (control group, n = 75) and a healthy lifestyle group (observation group, n = 75). All patients underwent a 3-month intervention. Data on general information, body composition, glucose metabolism, lipid metabolism, and inflammatory factors were analyzed. RESULTS: The difference in the change in fatty liver grade was statistically significant ( P <
0.05). There were statistically significant differences in treatment efficiency for physical conditions ( P <
0.05), including body fat mass, body mass index, body weight, waist circumference, and waist-to-hip ratio. In addition, there were statistically significant differences in treatment efficiency for scales such as the Diet Rating Scale, Emotional Stress Scale, and Global Physical Activity Questionnaire ( P <
0.05). Differences in treatment efficiency for body fat parameters, including percentage of body fat, visceral fat area, aspartate aminotransferase, and diastolic blood pressure, were also statistically significant ( P <
0.05). After treatment, statistically significant differences were observed in interferon-γ, insulin, low-density lipoprotein cholesterol, triglycerides, and tumor necrosis factor-α ( P <
0.05). DISCUSSION: Our study indicates that a healthy lifestyle can effectively promote the reduction of fatty liver grade in patients with MASLD, demonstrating positive effects in improving lipid metabolism and inflammatory responses in these patients.