You will need to consider pesticides as well as their impact on food. They're usually described as damaging. But if you consult with growers, you could arrive at a far more nuanced view. As an example, you might notice that none of the compound is retained on the produce you purchase, and that some fungicides are necessary; a healthy harvest cannot be made without them.
Eat a Mediterranean-style diet to help prevent heart disease. This includes plenty of healthy fats like seafood, vegetables, whole grains, beans and olive oil. Consuming these foods keep down blood pressure and your fat, while delivering other and fibre nutrients to the body it needs to become healthy.