How fast is alcohol eliminated?

If alcohol is absorbed very quickly by the body, the blood alcohol level reaches its maximum in 30 minutes on an empty stomach and in one hour during a meal. Conversely, its elimination by the body requires much more time …

Once absorbed, thealcohol passes into the bloodstream before being gradually eliminated by the liver.

Widmark line and elimination of alcohol by the liver

The blood alcohol level then decreases from 0.1 g to 0.15 g per hour, according to a rhythm defined by the "Widmark line". This in fact varies significantly from one individual to another.

By successive phenomena, the liver transforms the alcohol in acetaldehyde then in acetate. It then enters the energy cycle (hello calories !) Then is finally transformed into water and carbon dioxide.

Calculation of alcohol elimination time

To make your calculations and know when you can get back behind the wheel, you must start from the moment the maximum blood alcohol level is reached (30 minutes afterabsorption if you are fasting, one hour if you drank during a meal) and not from the moment the last drink was drunk.

No miracle recipe can accelerate the elimination ofalcohol. No need to swallow strong coffee (even salty), take a tabletaspirin or drink all at once glasses of water – except to quench your thirst. Practice an exercise physical above all, you will lose water, not lower your blood alcohol level. Only a tiny part of thealcohol ingested evaporates through sweat. Finally, exposure to cold is also without effect, except to cause a loss of heat. The only remedy is time.

Source: Road safety ; Federation of stakeholders in alcoholism and addictology.

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