I ve got no data but I d be more worried about b pressure and anxiety and snapping in line behind an e b t recipient or some dick texting sitting on a machine I m about to use than my liver. It s 3 time s as big..and actually can and will... given a chance...recover from almost any reasonable abuse..
My GP say s high caffeine is not good for p s a ' s either ..but he is a doc so there s a automatic built in inherent alarmist bias to move prostate med s I m sure...he did get a bigger boat....I think his new gf came with it.