liver flush, sometimes known as gallbladder flush using olive oil & lemon juice isn't particularly dangerous if you use magnesium sulphate ( Epsom Salts ), but the whole process is ineffective. See my recent post to this forum.
I drank the Chinese herb Gold Coin Grass for 2 weeks which was supposed to crush gallstones. This was followed by the full apple juice fast and olive oil and lemon juice flush. A week later my gall bladder was surgically removed, full of gallstones!