Eating healthily: a task for health education?
Most health education programmes designed to support a healthy diet embark on large-scale information campaigns relying on the assumption that information and knowledge will lead to behaviour change. This so-called information appeal is frequently supplemented by vivid descriptions of the health risks associated with an unhealthy diet (fear appeal). As important as information and fear appeals are in appropriate doses, they only constitute the prerequisite to what is supposed to become a long lasting behaviour change. A popular theme for health education campaigns over the last decades has been the diet-heart hypotheses. This is based on evidence that coronary heart disease is associated with raised cholesterol levels, and high blood pressure (essential hypertension) with a diet high in