Weight, Energy, Lipids, and the Liver (WELL) Study

Inclusion Criteria: * Nonalcoholic fatty liver disease (NAFLD), Nonalcoholic Steatohepatitis (NASH) or similar * Body Mass Index of 20-55 kg/m2 Exclusion Criteria: * Unstable management of heart failure, heart disease events within 3 months, a need for heart surgeries or procedures, and/or the use of a pacemaker or defibrillator * Current or previous diagnosis of severe kidney failure or diseases, some liver and pulmonary diseases * Severe or uncontrolled circulatory diseases and autoimmune diseases * Current diagnosis of or current treatment of cancer other than non-melanoma skin cancer * Current or previous diagnosis of type 1 diabetes * Use of Vitamin E supplements or Actos and Glucagon-like Peptide-1 medications for less than 1 months prior to enrolling. * Gastrointestinal diseases or disorders (including pancreatic and gastric bypass surgery) that would prevent participants from tolerating the study foods * Food Allergy or intolerances * Any dietary restriction where consumption of the study foods, study meals/snack or meal challenge or any ingredient would be contraindicated * Use of medications where consuming the food products would be contraindicated * Use of supplements high in linoleic acid in the past 4 weeks prior to enrolling * Hyperthyroidism * Pregnancy and lactation * Alcohol or drug abuse * Inability to access veins for venipuncture * Claustrophobia * Metal implants or metallic foreign objects in the body