Bloating: Causes and What Actually Helps
The 5 mechanisms
- Excess gas. Swallowed air or fermented carbs (FODMAPs). Feel: pressure, audible movement, relief from passing gas. Fix: identify carb triggers (FODMAP checker), eat slower, less carbonation.
- Fluid retention. Salt, hormones, late-day pattern. Feel: tight all over, worse evening, jewelry tight. Fix: lower sodium, hydration, magnesium, time-of-month tracking.
- Slow motility. Constipation, low fiber, low activity. Feel: dense, dull ache, infrequent BMs. Fix: hydration, soluble fiber, walking after meals, magnesium citrate.
- IBS / visceral hypersensitivity. Same volume of gas feels worse. Feel: pain disproportionate to apparent amount. Fix: low FODMAP, peppermint oil capsules, gut-directed CBT or hypnotherapy.
- Other (less common). SIBO (small intestinal bacterial overgrowth), gastroparesis, food allergy, gynecological causes. Worth clinical evaluation if persistent.
Daily practices that help most people
- Eat slower (20+ minutes per meal). Less swallowed air.
- 15-minute walk after the largest meal of the day. Improves motility.
- Sleep on your left side. Anatomically aids gastric emptying.
- Peppermint tea or enteric-coated peppermint oil capsules (best evidence: IBS-D).
- Avoid carbonated drinks if bloating is gas-pattern.
When to see a doctor
- Bloating with weight loss, anemia, or rectal bleeding
- Persistent change in bowel habits (> 6 weeks)
- Family history of IBD or colorectal cancer + new persistent bloating
- Bloating with vomiting or inability to keep food down