Too much Soy in Syntha-6???

tshaw024

Member
A lot of people have told me there is soy in syntha-6 and that's a bad thing bc it lowers your testosterone levels. Is there enough soy in syntha-6 to do this?
 
From the product page ingredients Invalid Link Removed , there isn't even any Soy Protein Isolate in the protein mix, there's only a bit of soy lecithin. I wouldn't worry about Syntha-6 and soy at all. What you DO have to watch for is Soy Protein Isolate in other foods; notable ones are Kashi, Vector Cereal, and many Meal Replacements.
 
tshaw024 said:
A lot of people have told me there is soy in syntha-6 and that's a bad thing bc it lowers your testosterone levels. Is there enough soy in syntha-6 to do this?
Click to expand...

Can you show me a study that says soy will lower test levels?
 
djbombsquad said:
Can you show me a study that says soy will lower test levels?
Click to expand...

Google it :) There are conflicting studies, so it's hard to say for sure. Here's one that doesn't support it PMID: 16775579 .

From soyconnection.com,
In fact, some clinical studies have been made on men who consume isoflavones have reported a drop in testosterone levels. However, many other studies have not found any effects whatsoever. Because it is necessary for us to consider the total evidence before reaching conclusions about a possible clinical effect, a systematic review of studies evaluate the effects of isoflavone-rich products on total and free testosterone levels in men was undertaken.

Regardless of statistical model, no significant effects of soy protein or isoflavone intake were observed on total testosterone levels in men. The results of this show that neither soyfoods nor isoflavone supplements derived from soy and red clover affect either free or total testosterone levels. However it should be noted, that many of the studies included in the full model of the meta-analysis were of poor quality; for example, many were not placebo-controlled and many were relatively short-term, with the average study duration being 10 weeks. On the other hand, isoflavone exposure was relatively quite high compare to typical Asian and Japanese intake. Overall, the results are reassuring that soy does not lead to any adverse or feminizing effects such as reducing testosterone levels in men.
Click to expand...

To be honest though, I'm still not totally sold on it, and avoid soy products. That website is clearly Pro-Soy, so take it with a grain of salt.

Invalid Link Removed
 
You must log in or register to reply here.
Back
Top