The present invention provides the tripeptide MAP and/or the tripeptide ITP and/or salts thereof for use as a health benefit agent, especially in functional food products. The tripeptides have particular application in the areas of the prevention of obesity or body weight control and cardiovascular health maintenance, especially the inhibition of angiotensin-converting enzyme and the control of blood cholesterol levels. Functional Food products comprising these tripeptides and having health benefits in these areas, and a process for making these products, are also provided. The tripeptides can be conveniently incorporated into food products to provide the aforementioned health benefits to the consumer thereof.