This is the link to the replies by Prof Taylor to the questions he was asked regarding the diet. http://www.ncl.ac.uk/magres/research/diabetes/documents/Diabetes-Reversaloftype2studyJune15.pdf
I have also included an exert regarding milk & sugar in replacement meals.
Optifast
Although Optifast was used in the study, this is not readily available in the UK unless on prescription.
An alternative liquid food supplement of similar calorific content is equally suitable. These are
available from most local supermarkets; you should try several brands to find one most suited to your
taste. Do not be concerned by the high sugar content as after the first day of very low calorie diet your
body is able to handle this reasonably well. Ideally, the low calorie meal replacement would be made
up with water; should this be completely unpalatable, then using skimmed milk is reasonable, although
the period required to achieve weight loss will be slightly longer.