Often the best type of study is a clinical trial where a theory is tested out using a treatment versus placebo. Ideally a study on chocolate would involve giving one group of study participants chocolate that is packed with the nutrients thought to improve the heart and the other given plain unenhanced chocolate. And, believe it or not, this study is being done in England starting this summer (2008)! It will run for an entire year. We are all hoping that it helps to improve the heart function of the participants.