Soy and it's possible effects.....????

[inked1314]

Ladies and gentleman I ask this to you gurus of dietary goodness. I was told by a family member yesterday. That soy and it's proteins could possibly cause elevated levels of Estrogen. Considering this is true, if some body was on a AS like Test-e. Would or could this enhance the potential for Gyno? Considering that soy was used as a replacement for dairy milk. ie...to mix a protein drink, for coffee....etc...

Thanks in advance

[PK-V]

Soy contains phytoestrogens (plant estrogens) it can convert into estrogen in the body

Women sometimes take large amounts to improve breast size lol

Soy is used as an emulsifier in most protein supplements, nothing to worry about though it's just trace amounts

Unless your pounding a gallon of soy milk a day then don't worry about it

[Str8Jakked]

Soy contains phytoestrogens (plant estrogens) it can convert into estrogen in the body

Unless your pounding a gallon of soy milk a day then don't worry about it

Exactly.

Plant estrogens can bind weakly to our body’s internal estrogen receptor sites.

It's Unfermented Soy also that is the culprit which is what Soy Milk is and consuming a ton of it can also increase mineral deficiencies and affect Thyroid function as well, but I digress...

If you are worried about your 2OHE1 estrogen metabolites, just off set it by supplementing with Flax Seed.

[MR-FQ320]

Err.... without meaning to sound like a tool, does this include chinese style soy sauce ?

[pheenyx1]

If your eating enough soy sauce to effect your estrogen then your sodium intake is WAY too high! I am almost positive that soy sauce is fermented soy though.

[inked1314]

Thank you for your replies folks! That's the reason why I frequent this site amongst all the others. Whey proteine and milk are two things I just cannot "Stomach" so soy based proteines and soy milk are the only way to go for me. Again , I appreciate the info.

[PK-V]

Have you got a food allergy test done?

Quiet a few people can be sensitive to the calcium caseinate component of milk

[jimmyinkedup]

This supposed effect of soy is highly overstated imo. Honestly i think its a crock. Id be shocked , in fact , if anyone could provide a credible study done on healthy males showing soy adversley effects testosterone levels or induces symtoms indicative of dangerous elevations in estrogen. In fact ive seen a study that showed an adverse imapct on testosterone that when looked at further it was discovered the results were inaccuarte due to one subject just coming off a steroid cycle. When his results were removed from the study it in fact showed a small incease in testosterone. This suggests that the phytoestrogens are acting with somewhat of a mild serm like effect. At the very least it suggets that they are completely innocuous in males (just like all plant sterols are imo). When i started working out i had access to a large supply of free whey /soy isolate belnd protein powder. I used it for a long time and made substantial gains with no adverse reactions. Also google vegitarian and vegan bodybuilders. You will be amazed how heavily they rely on soy. Howver in your case you have several options: soy / egg/ hemp/ pea. Most of your calories come in the form of whole foods anyway so i wouldnt worry much about a soy /egg protein shake or even a soley soy shake to help meet your protein requirements.

[PK-V]

3.2. Interaction with the metabolisms of steroid hormones



Isoflavones interact with sex steroids in multiple ways. Influence on the metabolisms of sex

hormones may be quite complex a may depend on several factors including species, sex, age,

hormonal status, etc. Moreover, the dose and duration of isoflavones administration may not

be linearly related to the treatment effect, which could add to the significant variability of

research findings. Isoflavones were found to inhibit the activity of both 5
α-reductase, which

catalyzes the conversion of testosterone to 5
α-dihydrotestosterone, and aromatase P450,

which mediates the conversion of testosterone to estradiol (Adlercreutz et al. 1993; Evans et

al. 1995; Kao et al. 1998; Brooks and Thompson 2005). On the other hand, it has been

reported that aromatase activity is inhibited by low concentration of isoflavones only, whereas

high isoflavone levels increase the activity of this enzyme (Almstrup et al. 2002). Isoflavones

bind to the sex hormone binding globulin (SHBG), and stimulate its synthesis (Adlercreutz et

al. 1987; Berrino et al. 2001). Alterations in SHBG concentration may yield changes in the

concentration of circulating steroid hormones.

In rats fed with high amounts of isoflavones, reduced plasma testosterone was found by

Weber and coworkers (2001), but no changes were reported in several other studies (Lund et

al. 2001; Lephart et al. 2003; Wang et al. 2004). Berrino and coworkers (2001) reported that

consumption of soy-rich diet reduced free testosterone in men. No effect on free testosterone,

but an increase effect in total serum testosterone was found by others (Celec et al. 2007; Low

et al. 2007). This has been explained by increased SHBG synthesis with consequent enhanced

uptake of free testosterone, which, in turn, stimulates testosterone production. Therefore, at

increased concentration of total testosterone in serum, the level of free testosterone may not

change (Celec et al. 2005). In women, soy-rich diet decreased (Berrino et al. 2001), or had no

effect on serum testosterone levels (Celec et al. 2005).

In normal rats, no alterations of estradiol level were reported after isoflavones administration

(Weber et al. 2001; Lund et al. 2001; Lephart et al. 2003). However, increased estradiol serum

levels were found in ovariectomized rats (Kawakita et al. 2009). In women before the

menopause, both no effect (Celec et al. 2005) and a decrease in serum estradiol were reported

(Nagata et al. 1998; Kurzer 2002). No effect (Petrakis et al. 1996), decrease (Berrino et al.

2001; Low et al. 2005), but even an increase (Adlercreutz and Mazur 1997) were reported in

the postmenopause. In men, alterations in estradiol serum concentrations were not detected

(Celec et al. 2005; Ostatnikova et al. 2007).

In addition to interactions of isoflavones with the metabolism of sex steroids effects on

thyroid gland hormones were reported. Hampl and coworkers (2008) found that a short-term

diet with a high amount of soybeans led to a transient increase in thyrotropin concentration.

This effect was observed only in men and not in women, whereby the triiodothyronine and

thyroxine serum concentrations were not changed.


__________________________________________________ _________

This is a brief break down of there effects on hormones

Again it's to be taken with a grain of sand

I would imagine it would not make any visual impact to your physique

But why take something that's not doing you any favors

[inked1314]

Have you got a food allergy test done?

Quiet a few people can be sensitive to the calcium caseinate component of milk

Yes I have had a food allergy to milk since I was an infant. Possibly causing some of my size/mass issues? I have used soy based products before weight training started 5 years ago. It's never a good outcome after consuming whole milk for me. So after my sis had told me about this so called "Fact". I had to get on here and check with the pros. I am hesitant to use Caseinate protein supps as well for this reason. Not sure if I should even mention supps on this forum. I just figured it tied into my original question. As a side question, would you think Caseinate supps would be as "UPSETTING" to use as a whey protein? Read: whey wreaks havoc on my digestive system with extreame pregudice!

[maxwkw]

Thank you for your replies folks! That's the reason why I frequent this site amongst all the others. Whey proteine and milk are two things I just cannot "Stomach" so soy based proteines and soy milk are the only way to go for me. Again , I appreciate the info.

Can you tolerate egg protein? Egg is a pretty good substitute for milk based proteins (if you can't tolerate them)

[inked1314]

I can, in fact tolerate egg proteine. However I haven't really put much effort into using the powdered form in my diet. I do have egg whites as my morning meal (6 EW with mrs. dash seasoning). I have two shakes per day (soy) one after my workout. Then the second as my last meal. So I am not sleeping with a huge meal in my body at a reduced metabolic rate.