Hi everyone my name is Chris and m returning to Sole Source of the cambridge diet. I was on this diet about a year ago an lost almost 3 stone in 6 weeks im now trying againcos my health is at risk. Im 25 and i currently weigh 19st 11lbs. My target weight is 13st so i have 6st and 11lbs to lose. Im so determined. I started the first day today which has been quite difficult and its always good to come on here to meet new friends for encouragement. I only drink water, no flavourings etc. How long do you think it will take for me to lose almost 7 stones. Im going on holiday in 11 weeks, is it possible?