In general fermented milk products fermented with Lactobacillus species, especially Lb. helveticus, contain high amounts of bioactive peptides. Moreover, cheese is another source of bioactive peptides  in addition to Kefir. Calpis sour milk is a product make in Japan by the Calpis Company which is fermented with a co-culture of Lb. helveticus and Saccharomyces cerevisiae. Further, Valio in Sweden is another commercial milk drink produced by fermenting milk using Lb. helveticus. Antihypertensive effects of these products are well-observed in numerous studies conducted by using human subjects and Spontaneously Hypertensive Rats.

Hi,

This is kind of a general question! dairy foods contain many products which have a broad spectrum of peptides with different bioactivities. milk  has several peptides with anti-hypertensive, immunomodulatory, anti-inflammatory, antioxidant, antimicrobial,opioid like activity and many others. whey, casein, different kinds of cheese and yogurt also contain bioactive peptides.

http://www.journalofdairyscience.org/article/S0022-0302(10)71487-9/fulltext

Thanks very much all

This is my research area and you are welcome at any time.

Explore AHTPDB to find all the dairy products which contain antihypertensive peptides

http://crdd.osdd.net/raghava/ahtpdb/

there a many probiotic bacteria can produce too much bioactive peptide

thanks prof alalfy