Have you ever had that slow, heavy ache after a greasy pizza? That’s often caused by delayed gastric emptying, where food sits in your stomach too long. Water can help by encouraging digestion to move along—think of it as a gentle nudge to your gut.
For cramps caused by constipation, water is practically a superhero. It softens stool and makes everything flow more freely, like rain washing away a traffic jam. The National Institute of Diabetes and Digestive and Kidney Diseases even recommends upping fluid intake as a first-line defense against tummy troubles.
And let’s not forget the classic “morning-after” stomach ache. Alcohol dehydrates you, leaving your stomach lining raw and sensitive. A glass of water (or two) before bed can reduce that regret by 50%, according to every wise bartender who’s ever slid you a napkin with a hangover cure.
The Exceptions: When Water Is a Villain
Here’s where we get real: water isn’t always the answer. If your stomach ache is from overeating, chugging water can actually expand your stomach further, triggering more pain. In that case, wait 30 minutes before taking a sip.
Nor does water help with gas pain. In fact, swallowing air while you gulp can add more bubbles to the party. If you’re bloated, try walking or a warm tea instead of a cold glass.
Benefits of drinking a glass of water on an empty stomach
And then there’s the spicy truth: if your stomach ache is caused by a stomach virus or food poisoning, water is essential for hydration, but it won’t stop the vomiting or diarrhea. You need electrolytes—like those in coconut water or a simple salt-sugar solution—to truly rebalance.