I've lost 10lb in four weeks on atkins. Might have lost a bit more but the week before I did a detox and lost 11lb in a week. I've got about 10 stone to lose to what they say is my 'ideal' weight for my height but don't want to get down that far, I've lost stone and a half so far and I'm looking for about another five or six. Keep at it, it works and will be worth it