I've spent the last year flitting around between Slimming World and JUDDD. Towards the end of the year, I knuckled down and followed SW. To date I've lost 1 stone. I enjoy it but find weekends very restrictive as I'm usually in my parents and its hard to stay on plan. I've decided to follow the SW principles on my UD. I read the Michael Molsely book over the weekend and I am going to do the 5:2 plan for a few weeks to see how I get on, and will add in a third fast day if required. Currently my fast days are Monday and Thursday. Today is my first DD, its gone well. I wasn't majorly hungry which is good. Just starting to get a little headache but nothing major. So far today: 2.30pm - 2 ryvita & 1 EL Laughing Cow triangle ..... 99 cals 6.00pm - 3 ryvita, 1/2 tin WW Tomato Soup, 1 EL Laughing Cow Triangle, Muller Light Greek Yoghurt ..... 258 cals 2 cans Coke Zero ..... 1 cal 2 black tea ..... 0 1L water ..... 0 Options Hot Chocolate ..... 40 cals 2 Malted biscuits ..... 80 cals Total cals for today: 478 cals Do you have to use up the full allowance of 500 cals per day? I weighed myself and took my bust/waist/hip measurements as well. SW - 212lbs B - 120 cm W - 116cm H - 122cm Offical weigh in day will be Fridays after Thursday's DD.