Whey vs Soy... have we been tricked?

[Charlie_Francis]

@UKcheetah

OK, so I have always considered soy protein a no-go because I’d heard that it contained phyto-estrogens…

However I just found an interesting article…

Daidzein is a key isoflavone found in soy that acts as a potent phyto-estrogen. It is structurally a very weak “pseudo-estrogen” (about 1000 times weaker than the body’s primary estrogen estradiol). This is good news to the bodybuilder because weak estrogens like daidzein will compete with stronger estrogens like estradiol for available receptor sites to “bind” to. By binding to the receptor sites daidzein then “blocks” the stronger estrogens from binding to and activating receptor sites. With the daidzein isolflavone attached, estrogen receptor sites remain inactive. This inactivity further minimizes the negative effects of estrogen in the body. Many researchers believe this effect is the reason soy protein is linked to a reduction in the risk for many forms of breast, endometrial, and prostate cancer. This mechanism works similarly to the prescription drug Nolvadex (tamoxifen citrate)–an anti-estrogen staple in the bodybuilding community.

Whey vs. Soy -- You've Been Tricked

The rest of the article outlines the benefits of soy over other proteins…

So what are your thoughts of the role of phyto-estrogens in the body??

I’d be very careful with your soy consumption. Judging by your Avatar, it’s beginning to have side effects on you!