T Nation

Phosphatidylserine Bovine?

I am looking for a bovine source of Phosphatidylserine anyone can point me in the right direction? I have been researching phosphatidylserine for it’s cortisol lowering effects.

There are two supplement sources of PS one from bovine and the other from soy/lecithin. The bovine source is the one that has the positive results (from what I have read so far) in relation to cortisol. Thanks in advance. Love this site great resources.

Bovine = COW cow = steak, ground beef etc.

eat meat


suggested reading


I should have been more clear the Phosphatidylserine from bovine source that has produced results in research studies is actually from bovine brain

Thanks for the link alltraps have actually researched it pretty thoroughly this site and web beginning to think there may not be a bovine brain source available anymore.