sentences:  EPA and DHA protect against heart disease and possibly diabetes.The replacement of a subsistence diet that is low in fat and high in omega-3s with a market-based Western diet has increased the risk of cardiovascular disease and diabetes in Alaska Natives.Many market (store-bought) foods are high in fats, carbohydrates, and sodium; and these may lead to increased weight gain, high cholesterol (hypercholesterolaemia), high blood pressure (hypertension), and chronic diseases.