What kind of liver disease? NAFLD: non-alcoholic fatty liver disease.
See the Journal of Nutrition for details:
Conclusions
“Daily consumption for nuts and seeds was associated with a lower prevalence of NAFLD in non-Mediterranean, US adults, although the benefits seem to be greater in females across all categories of nut and seed consumption groups compared with nonconsumers. Both males and females presented with lower prevalence of NAFLD with intakes of 15–30 g/d.”
Steve Parker, M.D.
Advanced Mediterranean Diet 