Dietary fibres are consumed from cereals, fruit and vegetables, but ar
e also added in purified form to food preparations. Different types of
dietary fibres have different structures and chemical compositions, a
nd correspondingly are of varying nutritional and technological intere
st. Although many studies have confirmed the nutritional benefits of d
ietary fibres, the results depend on the types of dietary fibres studi
ed or on the experimental conditions used. This article also focuses o
n their technological properties according to their botanical origin a
nd physical characteristics, and discusses the main applications of in
soluble dietary fibres in the food industry.