The study will demonstrate the extent to which a health promotion program incorporating dietary fish meals, as well as weight control and increased physical activity, compares with usual care alone. The study is designed to reduce blood pressure and drug requirements in the longer term and minimise cardiovascular risk in overweight hypertensive patients. We will use ambulatory blood pressures as criteria for both inclusion and endpoints decisions and will assess quality of life and the cost-benefit in relation to lifestyle changes and overall cardiovascular risk. The results should have important implications for public health given the high prevalence of hypertensive cardiovascular disease.