apparently we're supposed to start 810 at bmi 25 and a stone - I stayed on ss/ss+ till I was actually bmi 25 but i wasn't supposed to - I have been on 810 for two weeks now and have lost 4 lb so far - my weight loss had almost stopped completely - three pound in a month!!!!! I love 810, I get to eat two small meals a day (one just meat - tuna or chicken or quorn) the other with a bit of green!! And it is soo nice to have milk!! And I am still in Ketosis so I love it!!