Dr. David Jenkins, St. Michael's Hospital (IMAGE) St. Michael's Hospital Caption The portfolio diet; developed for reducing cholesterol also lowers blood pressure, according to a new study by Dr. David Jenkins, director of the Risk Factor Modification Centre at St. Michael's Hospital. Credit Courtesy of St. Michael's Hospital Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.