How does the presence of food in the stomach affect alcohol absorption?

The presence of food in the stomach significantly impacts how alcohol is absorbed into the bloodstream. When food is present, it can slow down the absorption of alcohol. This happens because food, particularly proteins and fats, can delay the passage of alcohol from the stomach into the small intestine, where absorption occurs more rapidly. As a result, with food in the stomach, alcohol is absorbed more gradually, leading to a slower rise in blood alcohol concentration.

In contrast, consuming alcohol on an empty stomach allows it to pass quickly into the small intestine, leading to faster absorption and a more immediate increase in blood alcohol levels. This is why it's often advised to eat before drinking. Therefore, the option that indicates food slows down the absorption of alcohol accurately reflects the physiological processes involved.