Dairy intake and semen quality among men attending a fertility clinic

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• 作者：Myriam C. Afeiche ; Ph.D.^a ; ^{mafeiche@hsph.harvard.edu" class="auth_mail} ; Naima D. Bridges ; M.D.^b ; ^c ; Paige L. Williams ; Sc.D.^d ; Audrey J. Gaskins ; B.S.E.^a ; ^e ; Cigdem Tanrikut ; M.D.^f ; John C. Petrozza ; M.D.^g ; Russ Hauser ; Sc.D.^e ; ^g ; ^h ; Jorge E. Chavarro ; M.D. ; Sc.D.^a ; ^e ; ⁱ
• 关键词：Infertility ; sperm quality ; dairy ; diet
• 刊名：Fertility and Sterility
• 出版年：May 2014
• 年：2014
• 卷：101
• 期：5
• 页码：1280-1287.e2
• 全文大小：357 K

文摘

To examine the relationship between dairy food intake and semen parameters.

Design

Longitudinal study.

Setting

Academic medical center fertility clinic.

Patient(s)

One hundred fifty-five men.

Intervention(s)

None.

Main Outcome Measure(s)

Total sperm count, sperm concentration, progressive motility, morphology, and semen volume.

Result(s)

Low-fat dairy intake was positively related to sperm concentration and progressive motility. On average, men in the highest quartile of intake (1.22–3.54 servings/d) had 33% (95% confidence interval [CI] 1, 55) higher sperm concentration and 9.3 percentage units (95% CI 1.4, 17.2) higher sperm motility than men in the lowest quartile of intake (≤0.28 servings/d). These associations were primarily explained by intake of low-fat milk. The corresponding results for low-fat milk were 30% (95% CI 1, 51) higher sperm concentration and 8.7 percentage units (95% CI 3.0, 14.4) higher sperm motility. Cheese intake was associated with lower sperm concentration among ever-smokers. In this group, men in the highest tertile of intake (0.82–2.43 servings/d) had 53.2% (95% CI 9.7, 75.7) lower sperm concentration than men in the lowest tertile of cheese intake (<0.43 servings/d).

Conclusion(s)

Our findings suggest that low-fat dairy intake, particularly low-fat milk, is related to higher sperm concentration and progressive motility, whereas cheese intake is related to lower sperm concentration among past or current smokers.