soy - anybody have the link to the article that talks about how bad it is for men?

Discussion in 'Fitness & Nutrition' started by KingGargantuan, Jul 17, 2007.

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  1. KingGargantuan

    KingGargantuan ♖♘♗♕♔♗♘♖

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    this vegan i work with said "that's a good one that's been put out by the dairy industry, lol"
     
  2. Anabolic Pop-Tarts

    Anabolic Pop-Tarts New Member

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    Did you delt smash him in the face?
     
  3. MaineSucks

    MaineSucks OT Supporter

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    1: Cancer Epidemiol Biomarkers Prev. 2007 Apr;16(4):829-33. Links
    Clinical and biological activity of soy protein powder supplementation in healthy male volunteers.Goodin S, Shen F, Shih WJ, Dave N, Kane MP, Medina P, Lambert GH, Aisner J, Gallo M, DiPaola RS.
    Department of Medicine, University of Medicine and Dentistry of New Jersey/Robert Wood Johnson Medical School, New Brunswick, NJ 08903-2681, USA. [email protected]

    PURPOSE: To determine if a commonly used soy protein supplement exhibits biological activity in vivo and in vitro, we evaluated an over-the-counter soy protein powder supplement using blood from healthy male volunteers and in an estrogen receptor in vitro assay. SUBJECTS AND METHODS: We recruited healthy male volunteers 18 years of age or older that were in good health. Treatment consisted of consuming two scoops (56 g) of pure soy protein powder (Puritan's Pride, Oakdale, NY) daily for 28 days. Serum testosterone and luteinizing hormone (LH) levels were collected on days -7, 0, 14, and 28 of therapy, and day 42. A reporter estrogen receptor (ER) assay was used to determine the effect on ER-beta and ER-alpha in vitro. RESULTS: Twelve subjects were enrolled with a mean age of 32.25 years (range 25 to 47). Serum testosterone decreased 19%(+/-22%) during the 4-week use of soy protein powder (P = 0.021) and increased within 2 weeks after we discontinued soy protein powder. Serum LH concentrations decreased during the 4-week use of soy protein powder then increased within 2 weeks after we stopped the soy protein powder, but the changes did not reach statistical significance (P = 0.20). Soy protein powder was found to induce agonist activity to ER-beta using a reporter estrogen receptor assay in yeast. CONCLUSION: Soy protein powder decreases serum testosterone levels in healthy men and acts as an ER-beta agonist; the significance of this biological effect with respect to cancer prevention needs further study
     
  4. N-Word-Jim

    N-Word-Jim Cure for boredom

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  5. Uglybob69

    Uglybob69 I miss beer.

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    For every animal you don't eat, I'm going to eat two.
     
  6. Yail Bloor

    Yail Bloor OT Supporter

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  7. bigdamray

    bigdamray New Member

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    Vegan=homo TRUE!!
     
  8. Genghis.Tron

    Genghis.Tron New Member

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    I think this is the study where the authors didn't describe the data like they are shown in their own graph.
     
  9. Werdna

    Werdna Livin' the SLO Life...

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    nice study :cool:
     
  10. Genghis.Tron

    Genghis.Tron New Member

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    Yup that's the one :

    [​IMG]
     
  11. MaineSucks

    MaineSucks OT Supporter

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    Yeah... I've heard it was flawed
     
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