What is high in protein, low in calories, fat and cholesterol, and the dish of choice in many countries with low rates of heart disease? The answer, as doctors and nutritionists have long maintained is fish. Indeed, experts point out, what little fat there is in some species can actually benefit the consumer; it contains high levels of omega-3 fatty acids, which can lower cholesterol levels in humans.
The unremitting praise of virtually everything piscan has had its effect. Over the past 30 years, as American beef consumption has sunk, T-bone and porterhouse have given way to steaks of salmon, swordfish...