What percentage of alcohol is absorbed through the small intestines?

The absorption of alcohol through the small intestines is a significant aspect of its pharmacokinetics. Approximately 80% of the alcohol that enters the digestive system is absorbed through the small intestines. This high absorption rate is due to the large surface area provided by the small intestines, which are covered with villi and microvilli that enhance the uptake of various substances, including alcohol.

When alcohol is ingested, it first begins to be absorbed in the stomach, but the majority of absorption occurs in the small intestines where it can quickly enter the bloodstream. Once in the bloodstream, alcohol can then affect the central nervous system and other bodily functions. This efficiency in alcohol absorption from the small intestines plays a crucial role in how quickly an individual may feel the effects of alcohol after consumption.

Thus, stating that 80% of alcohol is absorbed in the small intestines aligns well with the established understanding of alcohol metabolism and absorption.