Use of a preparation comprising an isolated peptide selected from the
group consisting of: Leu-Val (LV) (SEQ ID NO: 1) and lie-Val (IV) (SEQ ID
NO: 2) for the preparation of a composition having angiotensin-converting
enzyme (ACE) inhibitor effect. The peptides may e.g. be used to make a
functional food with anti-hypertensive properties.