The Case Against Eating Fish.

You might even be eating fish you didn’t know you had a sensitivity to. For example, escolar, often called “white tuna” on sushi menus, is a snake mackerel that’s routinely substituted for many different fish. While escolar’s oily texture is appealing to some taste buds, it can also be indigestible, causing severe diarrhea and cramping. (…) I wondered whether restaurant menus need new symbols along the lines of the ones that identify gluten-free, dairy-free, and vegan items—symbols that declare fish to be “species verified” or “plastic free.”