Phosphatidylserine: Where's the Research?
Seeking the truth? Do not strive to prove, but to disprove. From my perspective, the increasing popularity of phosphatidylserine (PS) as an ergogenic aid is entertaining. When a new supplement hits the market with claims of improved performance, increased this, decreased that... The "gurus" want a piece of the action - they jump on the bandwagon; like they've known all along. Now they're giving dosing protocols, touting the supposed benefits of "the next big thing." PS is not a new supplement - you can find research on PS and exercise dating back to the 80's. It used to be obtained from bovine cortex (cow brains), but after the mad cow disease scare, it has more recently has been extracted from soy (Jager et al., 2007). If you rely on the gurus' supplement reviews or forums for your nutrition information, you may be on your way to the nearest supplement shop. But before we get carried away, I have a few thoughts and questions about PS: