Inulin powder: everything you need to know 

Inulin powder might not be the most well-known supplement but it’s quickly gaining attention for its gut-friendly benefits. Found naturally in plants like chicory root, this type of fibre works behind the scenes to support digestion and feed the beneficial bacteria in your gut. Whether you’re looking to improve your fibre intake, support your digestive health or simply understand what it’s all about, we take a look at everything you need to know about inulin powder.

Inulin is a naturally occurring carbohydrate and a form of soluble fibre, meaning it dissolves in water and creates a gel-like substance. It’s part of a family of plant fibres called fructans, which are chains of a simple sugar linked together.¹

Inulin powder is a type of soluble fibre supplement, usually extracted from chicory root, that helps support digestion and gut health. Inulin itself occurs naturally in a range of plant foods but in supplement form it’s processed into a fine powder to provide a consistent, easy-to-use dose. While it’s always best to get fibre from whole foods, inulin powder can be a helpful option for people who struggle to meet their daily fibre intake.⁶

Inulin works a little differently depending on its structure. Some types are broken down quickly in the gut, while others can take longer to have an effect. As the body can’t digest inulin in the small intestine, it passes through to the large intestine where it acts as food for beneficial gut bacteria.⁷ Some evidence suggests healthy adults taking around 8g of inulin per day for at least five weeks, may increase beneficial bacteria like Bifidobacterium and improve bacteria living in the gut.^8-10

Some people may experience bloating, gas or mild stomach discomfort, especially if higher doses are introduced too quickly.⁷ If you’re sensitive to fermentable foods, for example if you’re following a low-FODMAP diet, you might notice these symptoms more. Starting with a small amount and gradually increasing intake can help improve this but make sure to always check with your doctor before taking a prebiotic supplement to ensure it’s right for you.

Prebiotics like inulin work by feeding the beneficial bacteria that already exists in the gut by passing through the small intestine undigested. In the colon, the gut bacteria ferments it and produces beneficial short-chain fatty acids (SCFAs) which can help strengthen the gut barrier.²

There’s strong evidence that inulin can support both weight management and blood sugar control when taken at the right doses. Research shows that taking around 16g per day over several months may help with body weight, BMI and appetite regulation.^13,15 This likely happens by producing SCFAs that stimulate gut hormones that help with keeping you full and supporting energy.¹³ Higher intakes of around 24g per day have also been shown to support healthy blood sugar levels, insulin sensitivity and glucose control in overweight adults.^14,16,17

Inulin may be helpful if you have low fibre intake, are looking to support your digestion or wanting to increase prebiotic fibre intake in a convenient way.

Inulin powder is a simple way to increase your intake of soluble prebiotic fibre. By feeding beneficial gut bacteria, it supports digestive health, microbiome balance and overall wellbeing. If you’re looking to improve gut health, consider starting with a small daily dose and eating plenty of prebiotic rich food in your diet.

Disclaimer – This article provides informational advice and is not a substitute for medical care. Working with experts for accuracy, we take great care to ensure the information is up-to-date and relevant. However, you should always consult your GP or healthcare professional before using supplements or alternative products, particularly if you have medical conditions or are under supervision.