realize that we went o/t re the intent of your original post. please back up this statement, though:
"There are polyunsaturated fats all over the body, and eating polyunsaturated fats is unrelated to the amount found in the mammary gland."
High dietary intake of polyunsaturated fats(omega 6, to be precise) is absolutely associated with skyrocketing Breast Cancer rates, according to all that I've read.
The fact that high amounts of polyunsaturated fats are found in breast tumors has to be related to dietary intake of PUFAs. If you have evidence to the contrary, please present.
From your original post~ " Iodine exerts its cancer-killing capability in Breast Cancer cells by binding with high concentrations of polyunsaturated fats found in breast tumors."