Combining the info in Jenny's post and what you wrote I guess you should be
worried if your period get heavier or if you get spotting. What you said is
about frequency - this I know not what to say.

Phytoestrogens appear in all sorts of food anyway, not just soy. The 5 year
experiment didn't say how much phytoestrogens they were feeding the women. They
didn't say whether the 4% is significant and at what level of significance plus
the sample is quite small (fewer than 300 people completed the test). Sometimes
I really don't know whether I can find anything to do to improve my health after
reading reports like that.

Reading your post sparked my interest again on what the pros and cons of eating
soy products, esp in the form of isolate. So I looked around a bit and so far I
have found nothing that provide quantified details. For example I don't know
how much phytoestrogens is carried in 100g of raw dried soya beans. The reports
that are against eating soy say nothing about the quantity of soy that one must
consumes to get into troubles. I apologise for not of very much use in here.


Bev-Ann wrote:
I'm the OP and at the time I posted the question I didn't know what
different types of soy products there are available. I was asking because
I have started eating black soy beans 3 to 5 times a week and use a
combination of soy protein isolate and soy flour as a replacement for wheat
flour in baking. I do eat the Atkins cold cereals on the weekends, but
those are the only frankenfoods I buy containing soy. I don't eat tofu or
use soy sauce.
It's been 4 and a half months since I started LC and using soy in these
forms. My periods have become more frequent (every 3 weeks) but my doctor
says that can happen on any diet where you lose weight quickly and the
addition of the small amount of soy such as I'm consuming is likely
coincidental. He said my periods should regulate themselves again in
another month or 2.