Aims: To assess the effects of carbon dioxide (CO(2)) in champagne on psychomotor performance and blood-alcohol concentration (BAC).
Methods: Twelve subjects consumed ethanol (0.6 g/kg body weight) served as champagne or champagne with the CO(2) removed, in a crossover study.
Results: Champagne produced significantly greater BACs and significantly increased reaction times in a divided attention task, than degassed champagne.
Conclusions: The CO(2) in champagne may accelerate absorption of alcohol, leading to more rapid or severe intoxication.