I've lost 13lb in 6 weeks. This is my second attempt, 1st time was 2 shakes, 2 small snacks and a meal (1200 cals/day). Didn't lose a single lb and I was gutted. A few months later, I was persuaded to try again, mainly to prevent me skipping meals in work (nhs shift work). Shakes are super quick and easy to have even on the busiest shift. I have 5 meals a day; 2 shakes, 2 good snacks and evening meal and an intake of around 1600 cals and have lost consistently for the last 6 weeks.