Designs For Health Phosphatidyl Choline 40% Powder is nearly three times more potent than regular lecithin. These granules blend well into healthy shakes or any other liquid. It is derived from soy lecithin and is typically well tolerated by those allergic to soy. The extraction of this beneficial phospholipid leaves all soy proteins and other soy components behind making it very non-allergenic. Suitable for vegetarians.