Prebiotics is a collective term for nutrients used as food by a number of bacteria in the intestines. A healthy and varied intestinal flora has enormous health benefits.

Scientific evidence

Good for

Healthy intestinal flora and strong intestinal wall.

Found in

The most well-known prebiotics are:

  • Inulin: found naturally in fruits and vegetables, such as onion, banana, chicory and sweet potato.
  • Fructo-oligosaccharides: are naturally found in the same fruits and vegetables as inulin.
  • Pectins: are found naturally in fruits and vegetables, such as apples and pears.
  • Beta-glucans: are found naturally in grains (such as oats and wheat) and in mushrooms.


Prebiotics are not broken down and absorbed by our bodies. They are broken down by the bacteria in the colon. This is called fermentation. In fact, bacteria use prebiotics as food. In particular, they stimulate the growth and activity of lactobacilli and bifidobacteria in the gut. These bacteria convert prebiotics into short-chain fatty acids that are important for gut wall health and bacterial variation.

Translated with (free version)

Science in numbers

Alternative name


Number of studies


Known for

Healthy gut microbiome