Deciding whether or not to eat soy, is a complex issue. There are some serious health implications with certain types of soy including soy protein isolate and textured vegetable protein. There are some concerns for those with thyroid disease as well, since there are chemicals in soy which can cause thyroid goiters. Then there is the estrogen effect.
When you research soy you can find a gamut of articles on each side of the fence. The most conservative say that only fermented forms of soy such as Miso and Soy Sauce are okay for human consumption. Just when I got used to and actually started liking Tofu and Tofu noodles! LOL
A greater concern is Hexane gas, a neurotoxic chemical solvent. Natural New TV shared this on the use of Hexane gas in soy processing. If you use soy, check your labels! The Cornucopia Institute has this soy score card which can help you evaluate your favorite brands. I was surprised to see some readily and widely available brands that received a ZERO rating!