I started following this diet three years ago after receiving a coronary stent. People always tell me they could never eat like I do, giving up all their favorite meats and dairy. This study shows that motivated people really can do like I did, which is something doctors like the doc in a hat two days ago don't apparently believe. As to the criticisms based on statistical merits, I'll defer to this passage from the report, "The Cleveland Clinic Institutional Review Board determined that these were acceptable outcome measurements to evaluate the nutrition program." If it's good enough for the Cleveland Clinic, it's good enough for me. If you folks want a controlled study, do one yourselves.