Hi missykay I'm not one of the "experts" on here as I only have a minimum amount of experience and expertise as others on here but I can tell you my experience from being both vegan for a little over a year and then being 811 raw for a few months.
I hadn't had a lot of extra weight when I started being vegan so there wasn't much weight to loose really. I just felt better and ALL the problems associated with my meat eating diet (worst problems were with dairy) went away.
Fast forward to when I went raw I began to eat a lot of fruits. I in fact ate more fruits than veggies so I guess its safe to say I was an 811 raw fruitarian? By that time I had bulked a lot through bodybuilding and had gone back to meat eating (eating crap on top of that) and I went up to around 210. When I went 811 I lost 35 lbs and got down to a nice 175. I still had some to go but I felt I wasn't going to get enough protein doing raw, and went straight back to animal products to get the overload of proteins I thought I needed for another bulk cycle.
Despite going back to that type of eating I NEVER gained all the weight back, although I haven't been too long off of the raw diet. I got back up to about 190 and then went back down and I have been going up and down between 188-190 until now. Part of that weight gain I know is from supplementing with creatine, which I stopped using today (along with going back to being vegan).
So the water weight from that will be lost, and I know I'll lose the fat I gained back also. I think part of my deal is some kind of inflammation because part of that "fat", for me, is body fluid (aside from the creatine water). This could be a symptom of dairy allergies.
For myself, I know how I felt during every type of diet, and there is no disputing the fact that I felt the best during the 811. However, I suggest doing a lot of reading if you go that route because some do not do well on it after an extended amount of time if not done right and I was again only on it for a few months. Perhaps it was good for a detox and that's it. And for your weight loss it may serve that purpose well also. I know it did for mine!
Anyway just my .02.
I know others who actually know what they're talking about will chime in and help you on here.
I'm new here too and its great to see other n00bs here besides me!
Today is my first day going back to being vegan. I already am prepared enough to stop eating animal products NOW and now is a better time than ever! I started out the first time doing it for health, mainly. But I also am aware of the INSANITY which is factory farming, and that has fueled my decision to go ahead and do this TODAY and go from there. I just can't contribute to the suffering of these poor creatures any longer!
Anyway so welcome from another n00b!