Beyond soluble and insoluble: A comprehensive framework for classifying dietary fibre’s health effects

Created in BioRender. Opperman, C. (2024) https://BioRender.com/s71l653 . • Current classification doesn’t accurately predict physiological effects. • Dietary fibre requires a novel way to understand its structure–function relationship. • We are proposing utilising 5 properties to categorise all fibres. • The proposed system can improve health outcomes. Despite evolving definitions, dietary fibre classifications remain simplistic, often reduced to soluble and insoluble types. This binary system overlooks the complexity of fibre structures and their diverse health effects. Indeed, soluble fibre is not just soluble but has important qualities such as fermentability, attenuating insulin secretion, and lowering…