A few years ago, at the beginning of the energy bar movement I was really hooked on the Clif brand of bars and was eating them between meals nearly every day as a health booster. That was until Clif switched away from from using nut and nut butters to boost the protein. Without so much a word to the consumer they switched their formula to soy protein isolate, and from my first bite I nearly had to visit the hospital. Unbeknownst I am allergic to soy protein - thus with so much as one bite of it I start losing my ability to breathe. My throat gets itchy, scratchy then starts to close up. Then I have headaches, body aches and feel pain in my chest and digestive track until it is out of my system. Recently I was out with my wife for dinner at a fancy restaurant where we have been frequent customers for a while. I ordered grilled fish and vegetables, and somehow my body began to react to something. Upon checking with the General Manager, turns out the kitchen recently switched to a Soy Oil spray! I have first hand experience debunking the dubious soy industry claims that the oil does not cause reactions! If you read the fine print they disclose that not all of the proteins are lost in the pressing process, plus often the soy is cold pressed leaving ALL the proteins intact. I know this, I will be becoming healthier simply because more and more of the processed foods are switching to soy oil and soy flour, thus I will not be eating them. Props to the previous poster: yes in Asia soy is most commonly used as a means of bringing more nitrogen into the soil of other plants (like comfrey does here) RATHER than being eaten as a staple food. The soy Asians eat is fully fermented before being eaten so as to destroy the allergenic proteins (think tempeh, miso, etc.).