From what I have seen of the soy hysteria, protein powders would seem to be the worst, so if those do not have adverse effects natural soy foods are less likely too.
I was perusing a forum I usually no longer read. A nutrition major who has been vegan and taking large amounts of soy protein powder daily for two years ( about 170 grams )went to his doctor and insisted on having blood work for all of the boogey man substances people try to scare vegans with.
All of his nutrients were high.
His estrogen levels were low normal for a man his age.
His testosterone levels were high normal for a man his age.
Years ago when such things still worried me I got PMed a similar account from a middle aged weight lifting buff who went and had his hormones measured after years of heavily hitting the soy. Sure enough, everything came back normal.
It isn't the best thing in the world to eat extracts instead of whole foods, nor is it good to not get variety. However, I think the anti-soy stuff is hype.
Soy Beans.....yes, even the straight beans taste great. They are a wealth of nutrition beyond just protein. They are also CHEAP and CHEAP compared to foods offering similar level of individual nutrients. Soy is a real threat to livestock and dairy producers, both of which have loads of money to fund FUD.
I have tempeh, soy beans, or tofu 2-3 times a week.
I am going to enjoy them from now on without any doubt.
Yeah, I agree with you generally, though I have to say that I think GM soy is a different thing entirely. I read a few studies and it appears that the protein molecules get all twisted up and messed around when they genetically modify them and that makes them extremely hard to digest. Obviously, things which are extremely hard to digest are not a good idea to eat on a regular basis. However, that said, I dont see a problem with eating non GM soy and it's what I normally take as its currently the only non-animal protein available in Spain. I haven't had any problems with it and I do like the taste, but I haven't had noticable results and I have also been concerned about the way they pack artificial sweetners and flavours into it!! I dont know if its the same in the US but here, every soy protein powder is full of other nasties! Well, to combat that, I've finally got a group of people together from my gym, who eat meat, but are willing to go in on a bulk shipment for pea protein from the UK and that's gonna work out at less than 10 euros a kilo so I'm very happy! I like to combine my proteins and as I take soy milk, soy yoghurt, soy cream, textured soya protein etc in my everyday diet, well I don't want to take soy protein supplements too! I've read, and I'm sure that you know better than I do, that soy has an inhibitor of a certain amino acid (not sure which one off hand) which is very important for muscle growth...from what I've read, pea protein however, has a much better amino acid profile..anyway I'll let you know how I get on with the pea protein
But to sum up, I dont think soy is bad for your health, just personally, it hasn't delivered results for me.