Our LLC discussed this with us, some ladies said they are lactose intolerant and wouldn't be able to do it.
I am thinking, no f***ing way am I going to waste a week drinking milk and £66 (possibly more), get out of ketosis, feel crap for 3 days again and probably ruin 2 weeks weight loss. If I continue as I am I will be done in 20 weeks and I am prepared to take responsibility for it myself.
Our LLC basically said she has to give us the leaflet and advise us to do it, but that is all she can do. I think she realises that nobody is planning on doing it in our group.
It is quite a recent thing I think, so anyone doing it for a second time probably didn't do it first time round.