Sushi is very popular today and it seems to taste even better when you are pregnant! In the US, women are usually told to not eat sushi when pregnant but this absolute “no-no” regarding sushi is probably not completely correct.
There are some justifiable concerns about the high mercury in some of the fish used such as tuna, mackerel, swordfish and blue marlin. You might be surprised about tuna being included in this list but this is due to the preference for using very large tuna when making sushi.
Generally the larger the fish, the more mercury it contains. Eel, shrimp, crab, fish eggs and scallops usually have acceptable mercury levels. The concerns for bacteria and parasites in sushi are also not correct. Most fish used for sushi in the US, per FDA guidelines, have been flash frozen when caught. This kills any bacteria and parasites that may be present.
Sushi is in many cases OK to eat while pregnant, but stay away from the high mercury containing fish. Only eat fresh sushi since otherwise you might need to worry about Listeria bacteria being present which can infect your baby.