One more thought to add to the whole constipation puzzle, which I can't believe I forgot earlier: DO NOT OVERLOOK THE POWER OF REAL SAUERKRAUT.
I buy raw sauerkraut from Rejuvevantive Foods. It comes in a little jar that has blue, purple, and pink on it (manly, I know). For those who don't know, saurkraut is made from fermented cabbage. Cabbage, like broccoli, is a cruciferious vegetable and hence has all the estrogen-blocking benefits that we've come to associate with DIM.
Here is the thing, though: Cooking crucifers apparently destroys much of the 13C/DIM therein. On the other hand, eating them completely raw can cause thyroid issues. But when you ferment the vegetables, you neutralize the substances that cause thyroid issues but leave the 13C/DIM intact. As such, sauerkraut seems to be the ticket for those looking to obtain a lot of the anti-estrogenic effects from food.
As for constipation, sauerkraut is loaded with healthy probiotics, enzymes, and fiber. All of which combines to help tremendiously with passing stool. I believe that sauerkraut has been the ticket for me when it comes to the mile-long dumps. Without this stuff it is easy for me to become quite bloated and irregular. Obviously, being irregular and bloated is a bad thing when it comes to endocrine function since our bowels are a huge part of the estrogen-elimination process.
I highly recommend that you guys check this stuff out. It is a winner on all accounts. The only real downside is that the taste is probably going to have to be acquired for most of you and no one will want to sit next to/talk to you when you eat it.