Is isoglucose low FODMAP?
High FODMAP, usually limited
Isoglucose is high FODMAP and is usually limited during the elimination phase.
Last reviewed October 24, 2026
Isoglucose on a low FODMAP diet
- Leave isoglucose 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 isoglucose
Fructose: Excess fructose means the food has more fructose than glucose. That extra fructose is absorbed less efficiently and can draw water into the bowel. Read more about fructose malabsorption.
Other sweeteners
Common questions
Is isoglucose low FODMAP?
Isoglucose is high FODMAP and is usually limited during the elimination phase. It contains excess fructose.
Which FODMAPs are in isoglucose?
Isoglucose contains excess fructose. Excess fructose means the food has more fructose than glucose. That extra fructose is absorbed less efficiently and can draw water into the bowel.
Can I have isoglucose during the low FODMAP elimination phase?
It's usually best left out during elimination and tested later, during reintroduction.
How do I test isoglucose during reintroduction?
Isoglucose belongs with the excess fructose group, which is often tested with honey or mango. Test one group at a time, starting small and increasing over a few days, and note how you feel.
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.

