[Role of diet in cardiovascular prevention].

Several dietary components increase the risk of ischemic cardiovascular disease: excess dietary cholesterol and fats (especially saturated fats with low mono- and polyunsaturated fatty acid content), deficiency of antioxidants, fibers. These dietary factors modify the levels and the physicochemical structure of plasma lipoproteins and consequently their metabolic activities. Some of them also modify platelet aggregation and endothelial function. To reduce the cardiovascular risk, different nutritional schemes have been proposed and applied in prevention studies. Mediterranean-type diet, or traditional Asian food provide a very favorable cost/effectiveness ratio. These diets must be associated with the usual measures for improving lifestyle (increased physical activity, reduction of smoking) and with drug treatment of major risk factors (dyslipidemia, hypertension, diabetes).