I got livers problem. And i think it is due to Protozoa.
I take a mixture of Echinacea + Goldenseal and OH MY GOD it is realllllly powerful. I m gaining power everyday.
I tried Barberry and it didnt have the same effect.
Also i take garlic and clove pills.
For me in terms of effects:
2- Echinacea (litterature under estimate power against protozoa)