I found that a recent study in china of 35,303 chinese women indicated that a higher intake of soy protein can lead to a reduced risk of breast cancer found in postmenopausal women. Isoflavones, a compound found highlt in soy, is 60 % more prevalent in women without breast cancer. However, various studies state that you must start taking soy at the beginning of puberty in order for it to have the positive effect. Soy can also negatively effect you. Soy protein can increse yje amount of the hormone, estrogen, a female growth hormone, in your body. Also, some of the Phytates in soy can block the amount of mineral intake your body can handle. Soy protein also has enzyme inhibitors, making protein digestion more difficult. It also contains Haemaggluttin, which increases red blood cell clumping and inhibits oxygen uptake and growth. My belief about soy, as well as any other dietary protein or supplement, is that it can work if u use it the right way. If you take too much or too little of the protein it may cause negative effects or no effects. Also, you have to always be responsible and careful when it comes to what you are deciding to let into your body. If you are not careful about how much soy you let into your body, you could begin to develop unsafe amounts of hormones in your body. This information allows me to conclude that soy cna be good for you. You must always be hesitant about putting any unfamiliar chemicals into your body, and you must think this decision through thoroughly. You should know the health benefits and downsides vefore allowing anything into your body. Therefore, i can see how soy could be beneficial to your health, but i also can see how it can have a very negative impact on your bodily functions.