If you ask a Basque person, they will tell you that cod is a key ingredient in their gastronomy. A Catalan person could tell you the same. What would become of us without 'esqueixada'? It is such an important fish that it has its own shops. Not to mention the Portuguese, who boast of having a recipe for every day of the year. But the most curious thing of all is that in our waters there is not a single cod. This fish is the only one that is consumed habitually on all five continents. And its trade, experts claim, changed humanity. But now this healthy protein aimed at the working classes is in danger.