I've just bought some of the PhD Diet Whey... I was going to use it as a protein supplement after running but I noticed you can use it as meal replacement too which I'm quite interested in. I'm only wanting to drop a stone but I thought it would be a good way to know exactly how many calories, carbs & fat I'm having in each meal without constantly weighing out my food (I carb count).
I was going to do a bit more research to make sure it was safe but my idea was to replace Breakfast & Lunch then have a decent, healthy dinner (grilled chicken, small amount of wholemeal pasta & plenty of veg, for example).
The Diet Whey contains CLA which I used prior to Diabetes (I'm Type 1, diagnosed at 27 years old) & it's good stuff for fat loss & muscle tone too.
I'll do some more research & keep you posted