The safety of mackerel is different for each of its types, and depends on its mercury levels. Generally most mackerel are safe for consumption, like spanish, north atlantic, and gulf mackerel, whereas some like King mackerel that have excess mercury aren’t. Hence, before you can add mackerel to your pregnancy diet, make sure that you know what type it is, and if it is safe. Apart from keeping mercury levels in check, you need to ensure that you cook the fish thoroughly. This kills the harmful parasites and bacteria and prevents harm to you and your baby. Also, remember to eat mackerel in moderation and keep these precautionary tips in mind. Furthermore, we recommend that you consult your doctor for further advice as well.