Do you think soy affects testosterone?

[msc545]

The short answer is no, soy does not affect testosterone levels. There's been a lot of debate and discussion around this topic, and some people believe that soy can lower testosterone because it contains phytoestrogens, which are plant-based compounds that can mimic the effects of estrogen in the body. However, there's no conclusive evidence to support this claim.

In fact, some studies have shown that soy can actually have a positive effect on testosterone levels.

[BoopBoopBeep]

I'd presume it was like the whole "artificial sweetner causes cancer" thing from the 80s.

Yes, carcinogenic outcome in lab rats became elevated... once they were force fed fois gras style enough to mimic their body weight per day. At that point everything causes cancer.

[RealMarek]

Regardless, I don’t think the huge amount of soy in a typical American’s diet (due to its use in processed foods, many times that of what Asians consume) is healthy.

[msc545]

why not?

[RealMarek]

Isoflavones can raise cancer risk among other things. We’re basically megadosing a population that is largely not adapted to soy in their diet historically with levels far higher than what is consumed in east Asia. What could possibly go wrong? It makes for good profit margins though, so…

[msc545]

These were rodent studies. Is there any evidence that isoflavones increase cancer risk in humans?

[RealMarek]

I’m sure my impression was influenced by the rodent studies. Read up on this a bit. The literature seems complex. The studies that show soy to be beneficial or safe are mostly on Asian populations, which are naturally adapted to metabolize it. Isoflavones are complicated and can have both estrogenic and anti-estrogenic effects. There is plenty of reason for a non-Asian to avoid having soy as the main dietary substrate, which means consuming processed foods in moderation.

[msc545]

Do you have some links for this?

[RealMarek]

pubmed.ncbi.nlm.nih.gov/.../

www.cambridge.org/.../...f-dietary-isoflavones.pdf

There are a lot of other links I haven’t followed.

[msc545]

Thank you. I'm going to do some reading.

[RealMarek]

I wish I had time to dig into it. It was interesting. What is very fascinating to me is how much is unknown, and that the unknowns didn’t stop a huge push to use soy as a new staple in the US.

[exitseven]

No, I tried soy protein for a while and my T levels did not drop.

[GoodGuyBreakingBad]

From Google soy, it does not affect a Male's Testosterone Levels.

[PointTaken]

Soy has properties that work like estrogen. An ex girlfriend of mine child was always drinking soy milk. He had huge bad mood swings. We looked it, took him off the milk, and he was fine ever since.

[OfMiceandMen]

Doubt it, next week a study will show it doesn't. All kinds of experts out there...

[RyanK9b]

Yes, its similar to Oestrogen.
Soyboy is a term not without a reason

[Apple1996]

Nah It's a myth that soy raises estrogen

[Anonymous]

I don’t know if it can affect it, but I thought it would raise the estrogen level in your body and work against testosterone