Somebody said, on one or the other herbalist mailing list, that fasting for 2 weeks would reduce fibroids by 70-80 %.
Now, I've been listening to Paul Bergner's "Insulin Resistance" CD set for the last few days, and it's absolutely fascinating. It's available for purchase here.
Paul says that fibroids grow with insulin levels:
Insulin raises igf-1 (insulin growth factor 1): you get fibroids, cancers, tumors - and very long youths (abnormal bone growth), among other things.
That same igf-1 totally shuts off production of growth hormone: you get flabby and your muscle mass disappears (and you get low thyroid, and obese, and you're more prone to inflammation, heart attacks, strokes, etc. etc.).
Get rid of the underlying insulin resistance (= syndrome x = metabolic syndrome) and you'll see those same successes with fibroids. AND you'll get rid of a host of other intractable chronic annoyances at the same time.
As to fasting - I wouldn't fast for two weeks. See, when you start doing loads of simple carbs again, well hello - here's your fibroids again.
A longer-lasting solution is a low-carb diet; it's easy-ish to implement if you do your own cooking.
Also add exercise: walking 2-3 x 10 minutes every day + 2 minute spurts of pushups, situps, etc. 2-3 times a day.
Of supplements, add megadoses of chromium (or liver) and magnesium, give zinc, B6, fish oils ...
And read the rest of the syndrome x posts on this blog. Or don't - your choice.