Can you eat prawns when you are breast feeding?
Yes
It's safe to eat whilst you're breast feeding, though it can affect you it is unlikely to affect your baby.
Prawn is a common name applied to large swimming crustaceans, particularly in Britain and Commonwealth nations, which may also be referred to as shrimp. Significant commercial species, valued for their eating qualities, tend to be large, and thus tend to be called prawns. Shrimp that fall in this category often belong to the suborder Dendrobranchiata. The term is only rarely used in North America, and typically for freshwater shrimp.
Shellfish is a culinary and fisheries term for exoskeleton-bearing aquatic invertebrates used as food, including various species of molluscs, crustaceans, and echinoderms. Although most kinds of shellfish are harvested from saltwater environments, some kinds are found only in freshwater. In addition a few species of land crabs are eaten, for example Cardisoma guanhumi in the Caribbean.