Nothing you eat, drink, or do will speed up sobriety in any meaningful way. Your liver processes alcohol at a fixed rate of roughly one standard drink per hour, and no shortcut can change that. A cold shower, black coffee, exercise, or fresh air might make you feel more alert, but your blood alcohol level stays exactly the same.
That said, there are things you can do to feel better while you wait, stay safe, and avoid making a bad situation worse.
Why Only Time Actually Works
Your liver breaks down alcohol using a specific set of enzymes, and those enzymes work at a steady pace regardless of what else is happening in your body. The average person clears between .015 and .020 blood alcohol concentration (BAC) per hour. If you’re at the legal limit of .08, that’s roughly 4 to 5 hours to reach zero.
The key fact: if there’s more alcohol in your blood than your liver can handle, the excess just keeps circulating. Your liver cannot speed up the process because you willed it to, took a supplement, or jumped in a cold pool. The unmetabolized alcohol stays in your bloodstream until your liver gets to it, one drink at a time.
How Long It Actually Takes
Your body weight, biological sex, and the number of drinks you’ve had all affect the timeline. Here’s what the numbers look like in practice. A 180-pound man who has had 5 drinks needs about 6.5 hours to reach a BAC of zero. A 140-pound woman who has had 5 drinks needs closer to 10.5 hours. These timelines surprise most people, especially when it comes to morning-after drinking situations. If you had 6 or 7 drinks ending at midnight, you could still have alcohol in your system well into the next morning.
One standard drink means 12 ounces of beer, 4 to 5 ounces of wine, or 1 ounce of liquor. Many cocktails and pours count as two or three standard drinks, so your actual number may be higher than you think.
What Coffee and Caffeine Actually Do
Caffeine is probably the most common “remedy” people reach for, and it’s also one of the most misleading. The CDC is clear on this: caffeine does not reduce the effects of alcohol on your body. It doesn’t lower your BAC or help your liver work faster.
What caffeine does is make you feel more awake. That’s the danger. You end up alert enough to believe you’re less impaired than you are, which can lead to worse decisions, like getting behind the wheel. Researchers call this being “wide awake drunk.” Your reaction time, coordination, and judgment are still compromised. You just don’t feel like they are.
Cold Showers, Fresh Air, and Exercise
These fall into the same category as coffee. They can jolt you into feeling more alert, but they have zero effect on your BAC or how quickly your liver processes alcohol. As one university health program puts it: unless your liver hops out and takes a shower with you, it won’t help.
Exercise does cause you to exhale and sweat out tiny amounts of alcohol, but the quantity is negligible. Your lungs and sweat glands handle only a small fraction of alcohol elimination. The liver does the overwhelming majority of the work, and it doesn’t care whether you’re on a treadmill or a couch.
What About Food and Water?
Eating food before or while you drink slows the absorption of alcohol into your bloodstream, which means your BAC rises more gradually and peaks lower. That’s genuinely useful, but it’s a prevention strategy, not a cure. Eating a big meal after you’re already drunk won’t pull alcohol out of your blood.
Drinking water is a similar story. Alcohol is a diuretic, so it dehydrates you, and much of what feels terrible about being drunk or hungover (headaches, dizziness, fatigue) is partly dehydration. Sipping water or an electrolyte drink won’t lower your BAC, but it will ease those symptoms and help you feel less miserable while your liver does its job. It’s one of the most practical things you can do.
Supplements and IV Drips
You may have seen products containing a compound called dihydromyricetin (DHM), marketed as a sobriety or hangover supplement. While DHM is currently in clinical trials for alcohol-related liver disease, no human study has yet shown it meaningfully lowers blood alcohol levels or speeds up sobriety. The results simply aren’t there yet.
Fructose is another substance that shows up in discussions about faster alcohol clearance. Lab studies on liver cells have found that fructose can increase the rate of alcohol breakdown by over 50%, but this is in isolated rat liver cells, not in living humans drinking at a party. The effect hasn’t translated into a practical, reliable way to sober up faster in real-world conditions.
IV hydration services, popular in some cities as hangover treatments, deliver fluids and electrolytes directly into your bloodstream, bypassing the digestive system. This can relieve dehydration symptoms within 30 to 60 minutes, faster than drinking water. But again, hydration addresses how you feel, not how much alcohol is in your blood. You’ll be a more comfortable version of drunk, not a sober one.
What You Can Do Right Now
If you’re searching this because you or someone else is intoxicated and you need practical guidance, here’s what actually helps:
- Stop drinking. Every additional drink resets the clock. Your liver is already working at full capacity.
- Sip water or an electrolyte drink. This won’t sober you up, but it reduces headaches, nausea, and dizziness.
- Eat something if you can keep it down. A snack won’t lower your BAC, but it can settle your stomach and slow the absorption of any alcohol still in your digestive tract.
- Wait it out. Budget roughly one hour per standard drink from your last sip. If you had 4 drinks finishing at 11 PM, plan on not being fully clear until at least 3 AM, and possibly later depending on your size.
- Don’t drive. Feeling “fine” is not the same as being sober. Your BAC may still be above the legal limit long after you stop feeling obviously drunk.
Keeping Someone Safe While They Wait
If someone is heavily intoxicated and falling asleep or losing consciousness, the biggest risk is choking on vomit. Place them on their side in what’s called the recovery position: lay them on their back first, then bend the knee farthest from you and gently roll them toward you using that knee. Tuck their top hand under their cheek to support their head, and tilt their head back slightly to keep the airway open.
Stay with them. Monitor their breathing. If they’re unresponsive, breathing irregularly, or their skin looks pale or bluish, call emergency services immediately.
Why Some People Sober Up Faster Than Others
Genetics play a significant role. The enzymes that break down alcohol vary from person to person, and some populations carry gene variants that make these enzymes work faster or slower. Biological sex matters too: women generally have lower levels of the primary alcohol-processing enzyme in the stomach, which means more alcohol reaches the bloodstream per drink. Body weight, overall nutrition, and how much you’ve eaten also shift the timeline. Certain medications can interfere with alcohol metabolism, raising your BAC higher than expected or keeping it elevated longer.
None of these factors are things you can change in the moment. They’re the biological hand you’re dealt, which is why two people who drink the same amount can feel very different levels of impairment and clear alcohol at different speeds.