Milk thistle is a great liver protector and can be added whether or not you do a flush. You still should do a flush.

'Nothing with a face' - you can get all you need health wise with no ill effects from plants. Fish, as well as other meat, has plusses, its the negatives that Schulze and Christopher speak of. Organic Fruits veges whole grains nuts and seeds. You'll do fine with that menu.

I haven't read that particular post you refer to that recommends avoiding consumption of anything with faces, but all I can say on the subject is that: I don't think that fish can be properly classified in that group, as they don't have "noses", technically a prime requisite for qualification as a true "face."
Also, fish are pretty much devoid of saturated fats, although I don't know if that has anything to do with them not having noses.