Which study compared a Mediterranean diet to the American Heart Association Step 1 diet for secondary prevention of CAD?

The Lyon Diet Heart Study is significant because it specifically focused on the effects of a Mediterranean diet compared to the American Heart Association Step 1 diet in individuals with established coronary artery disease (CAD). This research aimed to assess the impact of dietary patterns on cardiovascular outcomes following myocardial infarction.

The study found that adherence to the Mediterranean diet, which emphasizes the consumption of fruits, vegetables, whole grains, legumes, and healthy fats such as olive oil, correlated with a lower incidence of recurrent cardiac events compared to the more conventional American Heart Association Step 1 diet, which is lower in saturated fats and cholesterol. This highlighted the potential benefits of dietary interventions in secondary prevention strategies for coronary artery disease.

By showcasing the advantages of the Mediterranean diet, the results of the Lyon Diet Heart Study helped shape dietary recommendations for patients at risk of future cardiovascular events, further emphasizing the importance of lifestyle choices in managing heart disease.