When you drink beer, do you feel like you pee out more than you drink? Well, you actually do!
If you drink 200 milliliters of beer, you urinate out 320 milliliters off urine! Why does that happen?
Beer has an effect on a hormone made in the pituitary gland of our brain. The pituitary gland makes a hormone called vasopressin. When we drink beer, which is about 95% water and 5% alcohol, the alcohol sends a message to the pituitary gland to reduce the production of vasopressin. When vasopressin is reduced, the kidneys think that they need to produce more urine to get rid of the extra fluids in our system, so produce more urine.
Beer is made up of 95% water, but in general has about 5% of alcohol. So that alcohol effect on the pituitary gland, plus all of that fluid, causes the increased urination from drinking beer.
Weird medical fact of the day: There is a disease called “Beer Drinker’s Potomania”, where if a massive amount of beer is consumed, the salts in our blood (electrolytes) actually decrease to the point where we can have muscle weakness, dizziness, and even seizures!