The pale referred to in the idiom is usually taken to mean the English Pale, the part of Ireland under English rule, and therefore, as perceived by its rulers, within the bounds of civilization. pale see: beyond the pale
For the food, see Salmon as food. The chum salmon (Oncorhynchus keta) is a species of anadromous fish in the salmon family. It is a Pacific salmon, and may also be known as dog salmon or keta salmon, and is often marketed under the name silverbrite salmon.
Diet Guidelines you should follow. Choose the right food. Typical food during a ketogenic diet include: eggs, peanut butter, nuts, meat. On the other hand, high carb products like bread, pasta, rice have to be avoided.