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Meat intake and reproductive parameters among young men.


ABSTRACT: In the United States, anabolic sex steroids are administered to cattle for growth promotion. There is concern regarding the reproductive consequences of this practice in men who eat beef. We investigated whether meat consumption was associated with semen quality parameters and reproductive hormone levels in young men.Semen samples were obtained from 189 men aged 18-22 years. Diet was assessed with a previously validated food frequency questionnaire. We used linear regression to analyze the cross-sectional associations of meat intake with semen quality parameters and reproductive hormones while adjusting for potential confounders.There was an inverse relation between processed red meat intake and total sperm count. The adjusted relative differences in total sperm counts for men in increasing quartiles of processed meat intake were 0 (ref), -3 (95% confidence interval = -67 to 37), -14 (-82 to 28), and -78 (-202 to -5) million (test for trend, P = 0.01). This association was strongest among men with abstinence time less than 2 days and was driven by a strong inverse relation between processed red meat intake and ejaculate volume (test for trend, P = 0.003).In our population of young men, processed meat intake was associated with lower total sperm count. We cannot distinguish whether this association is because of residual confounding by abstinence time or represents a true biological effect.

SUBMITTER: Afeiche MC 

PROVIDER: S-EPMC4180710 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature

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Meat intake and reproductive parameters among young men.

Afeiche Myriam C MC   Williams Paige L PL   Gaskins Audrey J AJ   Mendiola Jaime J   Jørgensen Niels N   Swan Shanna H SH   Chavarro Jorge E JE  

Epidemiology (Cambridge, Mass.) 20140501 3


<h4>Background</h4>In the United States, anabolic sex steroids are administered to cattle for growth promotion. There is concern regarding the reproductive consequences of this practice in men who eat beef. We investigated whether meat consumption was associated with semen quality parameters and reproductive hormone levels in young men.<h4>Methods</h4>Semen samples were obtained from 189 men aged 18-22 years. Diet was assessed with a previously validated food frequency questionnaire. We used lin  ...[more]

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