Does body weight influence alcohol absorption rate?

Does body weight affect how quickly alcohol enters the bloodstream?

Body weight influences alcohol distribution more than absorption. Heavier people generally have more body water, which dilutes alcohol and produces lower blood alcohol concentrations for the same drink. This is already factored into standard drink equivalents and breathalyzer calibrations.

How does body weight change alcohol distribution in the body?

Larger frames hold more total body water. A 220-pound person has roughly 50 percent more body water than a 110-pound person. Alcohol dissolves readily in water, therefore a larger volume of water spreads the molecules across a broader area and keeps peak blood levels lower.

What happens when thin and heavy people drink the same amount?

Thin people reach higher blood alcohol levels faster. A lightweight person consuming three beers in an hour may hit a .08 blood alcohol concentration, while a 220-pound person drinking the same three beers will often stay below .05.