I've been on the 5:2 diet since first week in April and by third week had lost just under 5 pounds. The first fasting day was really quite hard and before bed, I went for a bath, to take my mind off food. This wasn't a good idea, as when I got out of the bath I really did feel quite faint! However, the next fasting day went much more easily. I didn't eat until lunchtime, when I had something like a low calorie soup and a couple of Ryvitas with Marmite. Dinner was 100gm chicken breast and salad, and some low sugar jelly. I've more or less stuck to this menu for fasting days, and am finding it so much easier now. Sometimes a l have a salad with a little tin of tuna (from the discount supermarket beginning with 'A' ) These little tins have about 98 cals in them and have all sorts of flavours like lemon, blackpepper, sun-dried tomato etc.
I've just come back from a short holiday, and I've eaten an AWFUL lot of chocolate...., and haven't fasted at all, obviously! However, tomorrow I'll begin again. I find that fasting on two weekdays works best for me - such as a Monday and a Thursday. This week it will just have to be Wednesday and Sunday, though. It really does work and I think it's because I don't have to deny myself anything for more than a day at a time, twice a week. Remember though - plenty of fluids!!