We present a Personalized Health Information Generation and Delivery System that leverages case based reasoning techniques to dynamically author a Personalized Health Information Package based on an individual’s current health profile. The work features a compositional adaptation approach, whereby relevant health information elements from the solution component of multiple similar past cases are carefully selected and systematically combined to yield a new personalized health information package. We have implemented a generic Java-based case based reasoning engine that applies a novel compositional adaptation algorithm to author a HTML-based personalized health information package that can be emailed to users.