Inclusion Criteria:  age 25-75 years men and women body mass index 25-45 kg/m2 clinical diagnosis of NAFLD self-reported habitual eating period more than or equal to 14 h per day.  Exclusion Criteria:  shift worker, recent or expected travel crossing time zones  fasting >12-h/day more than once a week  *> once a week no food intake after 18:00  habitually waking up before 04:00 and sleeping before 22:30 unstable weight (>5% change in the last 2 months) diabetes mellitus or alcoholic liver disease sleep disorder history of or current eating disorder cancer in last 5 years conditions that render subject unable to complete all testing procedures use of medications that affect the study outcome measures or increase the risk of study procedures and that cannot be temporarily discontinued smoking or illegal drug use pregnant or breastfeeding having metals in the body cognitive impairment gastrointestinal or bariatric surgery that affects nutrient digestion and absorption unable to grant voluntary informed consent or comply with the study instructions individuals who are not yet adults (infants, children, teenagers) individuals that are unable to lie motionless on the MRI scanner for an hour or *have tattoos or tattooed eyeliner alcohol abuse prisoners