I also used to like the flapjacks, but for some reason went off them completely when I restarted!
The only stipulation that I have heard about the flapjacks is that you have to drink an additional L of water for each one that you eat. I only ever ate one per day but can completly understand how good it feels to eat something!! I used to enjoy my coconut flapjack and a cup of peppermint tea, plus it was so handy when out!!