RecruitingDietary supplementEffects of Ketone Supplement and Alcohol on Brain MetabolismThe research study is being conducted to better understand the effects of ketones and alcohol on brain functioning and brain metabolism. Participants will be asked to undergo three identical MRI visits after three single-dose interventions: (1) drink a ketone supplement drink, (2) drink an alcoholic beverage, (3) no intervention. These interventions will be randomly assigned (meaning everyone receives all 3 interventions, but in different orders).