Can I Eat Watermelon with IBS?

Rebecca Taylor
Reviewed by Rebecca Taylor, Registered Nutritionist (RNutr)
Quick Answer

Unfortunately, watermelon is high in fructose and mannitol and should be avoided with IBS. Try cantaloupe/rockmelon instead.

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High FODMAP (fructose + mannitol) Safe: None recommended

What Our Protocols Say

Bloating-Dominant Avoid

Watermelon contains both excess fructose and mannitol — a double trigger.

Tip: Cantaloupe/rockmelon is a low-FODMAP melon alternative.

Constipation (IBS-C) Avoid

Despite being hydrating, the FODMAPs cause more harm than good.

Tip: Try cantaloupe for a safer melon option.

Diarrhea (IBS-D) Strictly Avoid

Mannitol and fructose can significantly worsen loose stools.

Tip: Honeydew or cantaloupe in small amounts.

Mixed (IBS-M) Avoid

Can trigger symptoms in either direction.

Tip: Choose cantaloupe or other low-FODMAP fruits.

Post-SIBO Recovery Avoid

High fermentation potential.

Tip: Safer fruit options available.

Stress-Triggered Avoid

Not worth the risk when gut is sensitized.

Tip: Stick to proven safe fruits.

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Medical Disclaimer

This information is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare provider before making changes to your diet.

Last updated: January 29, 2025 | Reviewed by Rebecca Taylor, RNutr