Modern medicine has proven clear links between an unhealthy diet and an unhealthy body. So we are getting smarter about what foods we eat. We are now overwhelmingly choosing lean proteins like fish over other proteins such as beef, high in saturated fats. We are choosing fish, high in health promoting omega-3 fatty acids, to keep our hearts and arteries nimble and our immune systems robust. We are choosing fish, high in minerals and vitamins and lacking the sugars and preservatives so common in processed foods. The first step to a healthy life is choosing the right food at the supermarket.