If I walked down the street and asked 10 random people the following: “Are soy and/or soy products good for you?” I am willing to bet that at least 7 of them would say yes. Foods such as Tofu, Soymilk, and Soy Yogurt would come to mind; they would recall the taglines that soy is high in protein and that soy milk is a good replacement for people with dairy allergies. So how would I answer this question? My answer would be no. Soy is not good for you, especially if you are male; it is an estrogen inducing, sperm count lowering, nutritional lightweight. I would go more into this, but you can find all the information regarding estrogen and sperm counts among other things here (http://nephropal.blogspot.com/search/label/soy).
Instead I will focus on the claims and evidence that exists in support of soy being a health food. Here is what I found:
High in Protein – That’s good but unfortunately soy also contains trypsin Inhibitors. What is trypsin? Well trypsin is a glorious enzyme, produced by the pancreas that is responsible for breaking down protein in our digestive system. Thus the trypsin inhibitors in soy will limit the amount of protein that can be broken down and used by our bodies, thus making soy a mediocre protein source at best.
OK, but it’s Rich in Calcium, Zinc, Iron, Phosphorus, magnesium, b-vitamins - Excellent at least it has a good mineral profile right? Wrong because soy also contains a huge amount of Phytic Acid, this is responsible for inhibiting absorption of zinc, calcium, iron, and magnesium. So much for all the great vitamin and minerals; we can’t absorb the majority of them in the presence of Phytic Acid anyway. And here is a note for you people thinking Soy/Soymilk is a good way to get calcium: The calcium is there, but your body never gets to use it!!!! So don’t think that soy is a good source of calcium, because it is not!!!
Yeah, but it’s Rich in omega-3’s – I can’t fault that, or can I? Actually yes I can, unfortunately soy contains almost exclusively
Ah but soy does Lowers LDL and Triglycerides – It may lower LDL and Triglycerides slightly, but the jury is still out on this one. However I do know this for sure: the American heart association no longer recommends soy as a good food for lowering cholesterol levels (http://www.healthcastle.com/soy_heart_AHA.shtml). I wonder why (Sarcastically)???
Low in Saturated Fat – Well saturated fat is not necessarily a bad thing. I guess this makes soy a low calorie food, so I won’t fault it for that.
In summary we have soy, high in protein, but trypsin inhibitors limit their breakdown; It’s got a lot of vitamins and minerals, but phytic acid renders the majority of them useless; It’s rich in omega-3’s, but unfortunately only ALA which must be converted by the body in order to be used; and its claims of lowering cholesterol levels is sorry at best. I think we should label Soy the food that has all the good stuff that your body can’t use, and it could fuck with your thyroid, lower sperm counts in men, and induce unwanted estrogen production. With all this being said, I still may have a tiny sliver of my heart still accepting of sprouted soy (the verdict is still out), but as of right now I recommend avoiding it completely because there are better alternatives.
New Research on why you should avoid Soy. By Sally Fallon and Mary G. Enig: