# Alcohol and dehydration **URL:** \ **Category:** Factual Questions\ **Created:** [June 17, 2019, 12:51pm UTC](https://boards.straightdope.com/t/alcohol-and-dehydration/835639 "2019-06-17T12:51:22Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Fear\_Itself](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/fear_itself/32/19637_2.png) [@Fear\_Itself](https://boards.straightdope.com/u/Fear_Itself)\ **Post date:** [June 17, 2019, 1:00pm UTC](https://boards.straightdope.com/t/alcohol-and-dehydration/835639/2 "2019-06-17T13:00:00Z")
> [@Alcohol and dehydration](https://boards.straightdope.com/t/alcohol-and-dehydration/835638/1): > > I I have also noticed that after drinking a moderate amount of beer (really!) my urine is almost colorless, a sign that I am NOT dehydrated. I don’t think this is true. Your pee is clear because alcohol is a diuretic. > [@](#): > > “Alcohol is a diuretic,” says Professor Oliver James, Head of Clinical Medical Sciences at Newcastle University. “It acts on the kidneys to make you pee out much more than you take in – which is why you need to go to the toilet so often when you drink.” In fact for every 1g of alcohol drunk, urine excretion increases by 10ml1. > > Alcohol also reduces the production of a hormone called vasopressin, which tells your kidneys to reabsorb water rather than flush it out through the bladder. With the body’s natural signal switched off, the bladder is free to fill up with fluid. > **[Why does alcohol make you pee more? | Drinkaware](https://www.drinkaware.co.uk/facts/health-effects-of-alcohol/general-health-effects/why-does-alcohol-make-you-pee-more)** > > Find out why exactly drinking alcohol make us need to pee more than when we drink soft drinks or water? --- _[View the full topic](https://boards.straightdope.com/t/alcohol-and-dehydration/835639)._