Many non-organic veggie burgers are immersed in the neurotoxin hexane when they are being prepared. As a rule, non-organic veggies burgers containing soy protein isolate, soy protein concentrate, or texturized vegetable protein have been immersed in the neurotoxin.
Hexane may even have been used for veggie burgers that you bought thinking they were organic. But it's not that simple. Check labels carefully. If the label says "made with organic ingredients" the neurotoxin hexane may still be present. The disclaimer being that the label does not say the product is ONLY made with organic ingredients.
Dr. Kaayla Daniel, who wrote "The Whole Soy Story" voices caution about the use of soy.
"Dr. Daniel also points out the findings of numerous studies reviewed by her and other colleagues -- that soy does not reliably lower cholesterol, and in fact raises homocysteine levels in many people, which has been found to increase your risk of stroke, birth defects, and yes: heart disease."
Veggie burgers aren't the only food product to watch out for. The neurotoxin hexane is present in the vast majority of processed foods containing soy, peanut and corn oil.
http://articles.mercola.com/sites/articles/archive/2010/05/15/which-veggie-burgers-were-made-with-a-neurotoxin.aspx