For what it's worth, here's what I take.
Fish oil
Evening primose oil
Glucosamine
Juice plus
The oils are needed for nutrition, the gluco for joint relief...not sure if it actually helps though, but it can't hurt. The Juice Plus, I highly recommend this to anyone, this stuff is fantastic. You take it 2x per day and get the equivalent of 10 servings of fruits and vegtables...fantastic for your immune system. No need for a multi if you take this stuff, but take one if you want, it won't hurt. I was skeptical about this stuff at first, but I'm sold on it now...very helpful.
As far as liver protection goes, I don't take anything until after my cycle and then I only use Liv-52.