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DigestionModerate evidence

Inulin

Also known as: fructans, oligofructose, FOS, chicory inulin

Inulin is a soluble fibre from chicory root, agave or Jerusalem artichoke that the body cannot digest on its own. It feeds beneficial gut bacteria, especially bifidobacteria, and therefore acts as a prebiotic.

What it is used for

  • Support for regular bowel movements – moderate evidence (EFSA-approved claim for chicory inulin)
  • Growth of bifidobacteria in the gut – moderate evidence
  • Fullness and appetite control – weak evidence
  • Calcium absorption – weak evidence

Forms and how they differ

chicory inulin

best studied, a powder with little taste

agave inulin

similar properties, slightly sweet

oligofructose (FOS)

shorter chains, ferments faster and causes more gas

When to take it

Any time of day, ideally with food; stir into yoghurt, porridge or a drink.

Pairs well with

Probiotics (as a synbiotic), plenty of water, other types of fibre.

Do not combine / separate

If you have irritable bowel syndrome or follow a low-FODMAP diet, inulin is better avoided.

Watch out for

It may cause bloating and gas, especially with a sensitive gut. In pregnancy, chronic kidney or liver disease and when taking medicines, consult your doctor.

Safety

No EFSA tolerable upper level; do not exceed the label dose and increase it gradually.

Practical tip

Start with 2–3 g a day and increase after a week depending on how your gut tolerates it.

Products containing Inulin 4

Inulin agave inulinagave inulinDigestion & gutBlood sugar & metabolismWeight & satietyImmunity
Inulin chicory inulinchicory inulinDigestion & gutBlood sugar & metabolismWeight & satietyImmunity
InulinfructooligosaccharidesDigestion & gutBlood sugar & metabolismWeight & satietyImmunity
Probiotics + Inulinmulti-strainDigestion & gutImmunityBlood sugar & metabolismWeight & satiety
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence

Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.

Combination check

Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.

Check Inulin with others

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Important notice

This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.