Prebiotics are a specific type of dietary fiber. They are typically complex, long-chain carbohydrates found in many plant-based foods like fruits, vegetables, and whole-grain products.
While humans cannot digest them, our beneficial gut bacteria can. They use these fibers as a food and energy source, which helps them thrive. Therefore, consuming enough dietary fiber through the diet can help support a healthy gut microbiome.
Ideally, we get enough fiber from a balanced diet. However, if the individual eating habits don't cover your fiber needs, supplementing with prebiotics can be beneficial.