Is lactulose low FODMAP?
High FODMAP, usually limited
Lactulose is high FODMAP and is usually limited during the elimination phase.
High FODMAPLast reviewed October 24, 2026
Lactulose on a low FODMAP diet
- Leave lactulose out during the elimination phase, which usually lasts two to six weeks.
- Look for a low FODMAP alternative in the same food group, or check one in our FODMAP checker.
- High FODMAP doesn't mean forever: during reintroduction, many people find they tolerate some high FODMAP foods in smaller amounts.
Which FODMAPs are in lactulose
GOS: GOS (galacto-oligosaccharides) are found mainly in legumes. Like fructans, they aren't digested in the small intestine and are fermented by gut bacteria, which can cause gas and bloating. Read more about foods that cause bloating.
Other sweeteners
Low FODMAPCommon questions
Is lactulose low FODMAP?
Lactulose is high FODMAP and is usually limited during the elimination phase. It contains GOS.
Which FODMAPs are in lactulose?
Lactulose contains GOS. GOS (galacto-oligosaccharides) are found mainly in legumes. Like fructans, they aren't digested in the small intestine and are fermented by gut bacteria, which can cause gas and bloating.
Can I have lactulose during the low FODMAP elimination phase?
It's usually best left out during elimination and tested later, during reintroduction.
How do I test lactulose during reintroduction?
Lactulose belongs with the GOS group, which is often tested with canned, rinsed chickpeas or lentils. Test one group at a time, starting small and increasing over a few days, and note how you feel.
Lactulose in our guides
Category
Sweets & Desserts · Sweetener
FODMAP levels in the Stummy database are based on published FODMAP research and describe typical servings. Your own tolerance can differ. Looking for something else? Check any food in the FODMAP checker or browse the full food list.
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