I don’t know of any recent long-term studies of the low-carb WOE but I believe one is underway.

I think you may be confused about the liver thing. LC WOE has been accused of causing kidney damage from the supposed “high protein” content, though there is no definitive evidence that a healthy kidney could be damaged by a diet high in protein. Here of any body builders on dialysis lately? As for damaging livers you can credit cholesterol lowering statin drugs for that. Ever heard of bacol?