A good book to read is "The Dark Side of Soy". There's lots of good info. in the book and it's in the FVRL library sytem. I was very diligently eating soy products a few years ago, as a replacement for dairy, only to find out its been wreaking havoc with my thyroid. Soy is in the majority of processed food products, especially in salad dressings and mayo. ,and baked items as it is currently the cheapest oil in the food industry right now. Soy is also in most of your frozen entrees (pizza, lasagna, frozen meatballs, etc.) because TVP - ( textured vegetable protein is simply made up of soy) is extremely cheap. Most frozen meatballs are just over 50% meat (by food industry law they have to have 50% meat content) and the rest is soy product plus salt and flavorings. My attitude is that soy is POISON to my body and I diligently read food labels, and try to avoid soy (also transfats, MSG & its derivatives, and artificial sweeteners) at all costs. Soy formula is also implicated in early onset menstruation in girls. Baby boys should NEVER be given soy formula because of soy's estrogenic effects. My suggestion is to simply eat whole foods: fruit , veggies, dairy, meats, and grains. Shop the perimeter of the grocery store, and make your own mayo. salad dressings, and baked goods.