👉 Nutshells, also known as nut shells or shellfish, are a type of edible seafood that is generally shaped like a small ball and contains a shell. These shells can range in size from a few millimeters to several centimeters, depending on their origin and preparation method. Nutshells can be found in many different types of fish such as cod, haddock, mackerel, and tuna, but they are most commonly associated with salmon. They are often used in various dishes such