We're in the process of going vegetarian and I'm looking at what I can use to change my recipes from meat to vegetarian options.

I recall, vaguely (and possibly it was rumour/urban myth?), about tofu being bad for you because of the soy?

Can someone elaborate on this? Is it certain types of tofu? What exactly is the problem? i.e. is it a problem if you eat tofu more than x times per week, like with certain types of fish (or any food really...)?

TIA