Cafodd Grŵp Ymchwil Alcohol Sheffield ym Mhrifysgol Sheffield ei gomisiynu gan Lywodraeth Cymru ym mis Mehefin 2017 i ddiweddaru'r gwerthusiad yn seiliedig ar fodel a wnaed yn 2014  ar yr effaith debygol o osod ystod o bolisïau isafbris uned yng Nghymru.
The Sheffield Alcohol Research Group at the University of Sheffield were commissioned by the Welsh Government in June 2017 to update the 2014 model-based appraisal of the likely impact of a range of minimum unit pricing policies in Wales.