Sorry, wrote a long post last night but think my phone crashed as I posted as have noticed its not on now!
Yes, I went very strict for about 4 months, then gradually eased off. Basically if it had sugar or yeast in it I didn't eat it. Most processed foods have one or the other so I stayed away from them, also anything caffeinated (still only ever have decaf tea and coffee), mouldy (like blue cheese, or aged cheese, mushrooms come under this too), pickled (and normal vinegar too).
I basically ate a lot if plain meat and fish, salads (with no dressing), and veggies. I stayed away from fruit to begin with too (apart from unripe bananas- yum!), but started to add it back after a few months and felt fine.
I did a lot of experimentation with bread like products - I love my hot buttered toast so not being able to have that was the worst thing about it for me! I'd eat potato cakes, also soda bread, and tesco's did one at the time that was like a mini soda loaf which was good. Also homemade scones (plain or with a mild cheese), and of course, lots of plain bio yoghurt!
Alcohol wise I would have neat whiskey or vodka and milk (I drink a lot of milk anyway so this tastes fine to me, although will get you a very odd look on a night out!)
The diet I was following was from an American book (sorry, I can't remember the name of it), and I remember it talking about stevia, but at the time you couldn't get it here. From memory, it's something to do with the fact that artificial sweetness have the same effect on candida as normal sugar, but it doesn't do is fine to take. I've actually got a plant of it growing in my kitchen, but haven't worked out what to actually do with the leaves yet!
Sorry, it's a bit of an essay! Hope it helps - its really hard to begin with, but it gets easier to follow as you get used to it, and as you work out what works for you. 