Numerous casein and whey protein-derived angiotensin-I-converting enzyme (A
CE) inhibitory peptides/hydrolysates have been identified. Clinical trials
in hypertensive animals and humans show that these peptides/hydrolysates ca
n bring about a significant reduction in hypertension. These peptides/hydro
lysates may be classified as functional food ingredients and nutraceuticals
due to their ability to provide health benefits i.e. as functional food in
gredients in reducing the risk of developing a disease and as nutraceutical
s in the prevention/treatment of disease.