I am a true baby stepper - so reading the blurb at the very beginning of the nhs 12 week plan - it mentions the 18g daily recommended fibre intake. I decided to log my food using fitness pal to see if I could monitor and improve my fibre amount. I've been watching it for about a week now. FP actually recommends 25g. I've managed just over 25g a day, and have noticed how satiated my appetite is. No evening cravings or urges to nibble my way through the day.
So this is a healthy habit I will try to keep up.