Do a search on here for 'candida' and you will find a ton of info.
I've been battling candida on/off again for over a year. I finally sought out the help of a naturopath with loads of experience with candida and getting rid of it.
Coffee is said to be mouldy; unless you buy David Asprey's coffee from his site, I would stay away. Having said that, everyone with candida is different. Yours may not react. I avoid coffee mostly because I feel ill after drinking it. I am fine drinking black tea, although I don't consume it regularly.
At the same time, some people with candida react heavily to fermented foods. Some don't. I could not consume apple cider vinegar, for example, for a long time. I can now in very small amounts.
Candida is a bitch, because there are no reliable tests for it that are 100% accurate. Mark even posted an article on candida recently with some very good info (particularly low carb is just as bad as high carb for candida, as it can feed on ketones AND sugar alternately). But it's all very inconclusive.
I am on a product from Biotics Research called A.D.P. It is an emulsified, slow release form of oil of oregano. It works great. My bowel movements are far more regular than they've ever been, and the white coating on my tongue has disappeared.
And I've tried EVERYTHING: from kyolic garlic supps, high doses of coconut oil (it didn't work for me), yeast-eating enzymes from multiple different brands). You name it, I tried it.
Candida gave me a nasty form of periorial (sp?) dermatitis on my chin and around my mouth. I rid myself of it in a month using l-glutamine is large doses, between 10 - 20 grams a day.
You should also know that candida overgrowth also starts because of adrenal fatigue. Your adrenals regulate blood sugar, your rest/digest and fight/flight systems, and your immune system. If they are out of whack, chances are you've developed weird food allergies (like I have), you're constantly tired (ditto), you are sensitive to odd smells (oh yeah) and you always get sick (yep).
Research the crap out of local naturopaths and find a good one. You CANNOT DO THIS ALONE. I tried, and I spent so much money over the course of a year.
I was tested for food allergies FIRST when I saw my current naturopath, and I had to remove A LOT from my diet, so my immune system could stop freaking out over what I was eating and start dealing with candida. I've also started healing my adrenals slowly. I figured if I heal my adrenals, then I am ultimately getting to the source of the problem. Food allergies/candiasisis doesn't just develop because of leaky gut. There are other reasons.
This is seriously frustrating, hard work. I was at the end of my rope, many, many times. The internet is a bitch because there is A TON of misinformation out there. I've read it all.