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Bloated all the time? What's normal and when to see a GI doctor

Nearly everyone feels bloated sometimes. Usually it's gas, a big meal or constipation, and simple changes help. But bloating that sticks around deserves a look, and a few signs shouldn't wait.

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Common, usually harmless causes

  • Swallowed air from eating fast, chewing gum, carbonated drinks or using straws.
  • Gas-producing foods like beans, onions, broccoli, cabbage and wheat.
  • Sugar alcohols such as sorbitol and xylitol in sugar-free gum, candy and protein bars.
  • Constipation, one of the most common and most overlooked causes.
  • Large or high-fat meals, which empty from the stomach more slowly.
  • Hormonal shifts around the menstrual cycle.
  • Some medicines, including GLP-1 medicines like Ozempic and Mounjaro, which slow stomach emptying.

Conditions that can look like "just bloating"

  • Irritable bowel syndrome (IBS), often with cramping and changes in bowel habits.
  • Lactose intolerance.
  • Celiac disease, which a simple blood test can check. Keep eating gluten until you're tested, or the test can come back falsely normal.
  • Small intestinal bacterial overgrowth (SIBO), checked with a breath test.

Get checked promptly if bloating comes with

  • Weight loss you can't explain
  • Blood in the stool, black stools or iron-deficiency anemia
  • Vomiting or trouble keeping food down
  • Pain or diarrhea that wakes you at night
  • Fever
  • A new, lasting change in bowel habits, especially after 45
  • A family history of colon cancer, ovarian cancer, celiac disease or inflammatory bowel disease

For women, new bloating most days for more than a few weeks can be an early sign of ovarian cancer. Mention it to your gynecologist or primary care doctor, not just a GI doctor.

What to try first

  • Eat more slowly and have smaller meals.
  • Cut back on carbonated drinks, gum and sugar-free sweets.
  • Keep a two-week food and symptom diary.
  • Try two weeks without dairy and see whether it helps.
  • Treat constipation: more water, fiber added gradually and daily movement.
  • Take a 10 to 15 minute walk after meals.
  • If symptoms persist, a short low-FODMAP diet with a dietitian's guidance can find your triggers. It's meant to be temporary, not forever.

When to see a gastroenterologist

If simple changes don't help after a few weeks, or you have any of the warning signs above, it's time for an evaluation. That may include blood tests, a stool test, a breath test, and a colonoscopy if you're due for screening or your symptoms point that way.

Bloating is common and usually manageable. The goal is to find what's driving it, and to catch the rare cases that need more.

— Brian Frank, MD

Questions about bloating? Call (813) 400-0543 or send a message.

Dr. Brian Frank, MD
Written by Brian Frank, MD
Board-certified gastroenterologist (ABIM). Published October 11, 2026.

This page is general information, not medical advice. For a medical emergency, call 911.