Quick answer
Inulin is a type of soluble plant fibre called a fructan, made of chains of fructose. Most commercial inulin comes from chicory root, and it's also found in onions, garlic, leeks, asparagus and Jerusalem artichokes. It's a common prebiotic and is often added to probiotic capsules.
Type
Soluble fibre (a fructan)
Main commercial source
Chicory root
Food sources
Onion, garlic, leek, asparagus
Taste
Mildly sweet
Where does inulin come from?
| Food | Inulin |
|---|---|
| Chicory root | Very high |
| Jerusalem artichoke | High |
| Garlic | High |
| Onion and leek | Moderate |
| Asparagus | Moderate |
| Banana | Low |
Why is inulin added to supplements and foods?
Inulin is used as a prebiotic fibre, and its mildly sweet taste and creamy texture also make it useful in foods such as yoghurts and bars. In probiotic capsules, it's added alongside the live microbes.
Things to know about inulin
Tip: Like other fermentable fibres, larger amounts of inulin can cause wind or bloating in some people. Start with the label's directions.
People following a low-FODMAP diet often limit fructans such as inulin. Speak with your dietitian if that applies to you.
Frequently asked questions
Is inulin the same as insulin?
No. Inulin is a plant fibre; insulin is a hormone. The names are just similar.
Is inulin a FODMAP?
Yes. Inulin is a fructan, which is one of the FODMAP groups.
Is inulin vegan?
Yes. Inulin comes from plants.
Keep reading
This article is general information only and is not medical advice. Always read the label and follow the directions for use. Dietary supplements should not replace a balanced diet. If you are pregnant, breastfeeding, taking medication or have a medical condition, speak with your doctor or pharmacist before taking a new supplement.
