The present invention provides a process for producing a composition which is preferably a food, food intermediate, nutraceutical, dietary supplement, feed, or pet food, which comprises mixing together a peptide, preferably a bioactive peptide, and a dietary fibre.The composition of the invention can be used to improve the bioavailability of bioactive peptides or used as a food, food intermediate, nutraceutical, dietary supplement, feed, or pet food.