I would be *very* surprised if there's a genuine link between Soya and breast cancer.

I say this on the basis that traditionally, South East Asian women (Japanese, chinese, etc) have had much lower breast cancer rates than is standard, and it's a well known fact that south east asian diets contain a *lot* of soya. From what I've read, it appears that their rates of breast cancer have begun to rise around the same time as they've adopted a more western diet.

Obviously, I'm not saying that this evidence is conclusive. But the fact that those asian women have been eatiing a soy-rich diet for years and years and their breast cancer rate has been so low is enough to allay any fears I might have about eating too much soya for this reason.

In any case, I'm of the school that says 'All things in moderation' (well, apart from carbohydrate, meat, dairy products...). (I eat soya in some form every day, FYI)