I read the report on the study this morning. Here is the copy on the diet food plan:

"3 diet shakes per day and 240 grams of non-starchy vegetables taking in between 600 and 700kcal a day for 8 weeks
•volunteers then gradually returned to eating normal food over the next two weeks with very careful instruction on how much to eat"

No too appealing to me, and certainly not "normal" food with 3 shakes per day. If it works, great, but to me it would be torturous.