UNMASK: Unveiling the Pathobiology of Metabolic Dysfunction-Associated Steatotic Liver Disease for the Discovery of Novel Therapeutics and Biomarkers

Inclusion Criteria: * Metabolic disarrangements following ATPIII criteria (i.e. comorbidities such as Type 2 diabetes, central obesity, BMI≥\>25 kg/m2, hypertension, dyslipidaemia. * Written informed consent * No dietetical counsellor/weight loss higher than 10% within the prior 6 months * Age over 18 years old * Liver stiffness measurement by Fibroscan ≥ 8, CAP ≥ 248 db/m and MRI PDFF ≥ 5%. , Exclusion Criteria: * Significant alcohol intake (≥30 g/day in men and ≥20 g/day in women) * Other causes of liver disease (evidence of viral or autoimmune hepatitis, HIV, drug-induced fatty liver or other metabolic liver diseases) * Use of recreational drugs * Decompensated acute or chronic liver disease * Cirrhosis or transplant waitlist * Pregnancy or parenteral nutrition * No nutritional interventions, medications for weight loss or weight loss higher than 5% within the last year * Presence of other comorbidities that would impact lifestyle intervention (i. e. prosthesis) * Absence of a personal smartphone with a compatible operating system capable of supporting the Amazfit Bip 6 accelerometer app's functionalities: Android 7.0 or iOS 14.0, or later.