The U.S. National Academies of Sciences, Engineering, and Medicine toss out a general recommendation. For men, about 3.7 liters (or 15.5 cups) of fluid per day. For women, 2.7 liters (or 11.5 cups).
But notice I said fluid. That includes water from food, soup, coffee, and even that sneaky watermelon you inhaled. You don’t need to chug raw H₂O like it’s a punishment.
Listen to Your Thirst—It’s Not a Liar
Your body has a built-in alarm system. It’s called thirst. If you’re thirsty, drink. That’s literally the simplest rule in the universe. Are you parched? Grab a glass. Are you not? Put the bottle down.
Chart Shows How Much Water People Need To Drink According To Weight
But here’s the funny thing: thirst can be subtle. Sometimes your brain confuses thirst with hunger. So if you’re craving a snack, try water first. You might just be a dehydrated drama queen.
