Aim 1. Describe the severity of AD in NAFLD and the relationship of AD to symptoms experienced by NAFLD patients (fatigue, chronic pain, depression, sleep disturbance, and cognitive dysfunction) (Aim 1a) and to the quality of life of NAFLD patients (Aim 1b). Primary screening for inclusion/exclusion criteria will be done at the VCUHS clinic. Subjects meeting inclusion criteria will be approached about study participation during their routine NAFLD clinic visit. Those who agree to participate in the study will return for a study visit at the CCTR Clinical Research Services. All subjects will be asked to fast and avoid caffeine for 12 hours prior to study visit. Demographic and clinical data will be collected by study coordinators. After a focused exam, conducted by a hepatologist to determine health status of the participants, the PI and a research nurse will interview participants to assess their symptoms and AD (Aim 1). Blood (20 ml) samples will be collected via venipuncture for serum and plasma inflammatory markers and IR (Aim 2).