Hey, according to the biotin wikipedia page, it MAY even go further than that:
What we have MIGHT be extreme B7 deficiency causing all sorts of symptoms as well as fungal overgrowth, rather than fungal overgrowth causing all of said symptoms!
...damn. Gotta try some of this stuff. Problem is, I just spent 15 minutes powersearching teh entire internets and haven't been able to find more than a paltry 20% Daily Value supplement on my country's market - with one exception - bloody effin DOGGY VITAMINS :( Think I'd be OK taking doggy vitamins???