in clear-lidded cups. Each portion was consumed within 5 minutes with a 5-minute rest interval between portions. The sessions commenced between 3:00 and 5:00 PM and proceeded for 4.5 to 5 hours in comfortable, living room–like laboratory testing rooms. Each session began with self-report assessments of abstinence compliance of 48 hours for alcohol and drugs, and 3 hours for food, caffeine, and smoking. A urine sample was collected for a random drug toxicology screen before at least one session. For women, a urine sample was collected before every session to test for HcG to verify nonpregnancy. After these compliance measures, the participant then consumed a snack at 20% of daily kilocalorie needs consisting of 55% carbohydrate, 10% protein, and 35% fat. Prebeverage subjective and objective measures were conducted after the snack, followed by the beverage consumption interval accompanied by light conversation with the research assistant. Postbeverage measures were repeated at 30, 60, 120, and 180 minutes after beverage initiation. Between time points, the participant could view movies or read magazines from a standardized list provided by the study. At the end of each session when BrAC was ≤.04 mg/dL (.04%), a car service transported participants home. At the end of
