Someone asked about whether chicken and veg will bring us out of ketosis and the thing is it depends on quantity..
When you look at the meals where you eat to stay in ketosis, you can have very few green veg or salad.... a few spoonfuls.
Its not that easy though....
The gremlins are clever *******.... when you sit down at the table imagine how hard it would be to have a small bit of chicken and a few spoons of greens whilst as you say in your words they are tucking into a yummy roast. It would be so hard not to have a spoon of gravy etc etc.... I am just saying how I would feel and it your decision... just many of us here have struggled with falling of the wagon in previous attempts but few of us have intended to fail.. we all beleived we could just have a quick break.
As for your sister, I under stand the special needs thing, I have two daughters with special needs, but ultimately I think if you explained in a certain way, you could turn it around so she would be really proud of you...
lastly, I understand that a shake is not as yummy as a roast dinner, but the way I get through it ( and I have got through 1 party and cooking family meals for the last month) is by almost thinking of the shakes just as nutrition... in real life of course I would not drink milkshakes or have choc bars for breakfast dinner and tea, but I am obese. I have got this way because I cant moderate my food intake and therfore this diet and the balanced nutrition it gives me is all I need... its the vehicle to get me to the end of my journey....
You and only you can decide whether you can do this diet, CD will give you results quickly but in return for that it takes a lot of effort...
I really wish you well with your dilemma

x
Just to add.... I agree with the need for support here.... I wouldnt have got through my first week without the help and support minis offers.. and I hope my experiences (and thats all I offer) is of use x