Dairy intake and semen quality among men attending a fertility clinic

Among men attending a fertility clinic, low-fat dairy intake, particularly low-fat milk, was related to higher sperm concentration and progressive motility, whereas cheese intake was related to lower sperm concentration.

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Authors

Myriam C. Afeiche, Ph.D., Naima D. Bridges, M.D., M.P.H., Paige L. Williams, Sc.D., Audrey J. Gaskins, B.S.E., Cigdem Tanrikut , M.D., John C. Petrozza, M.D., Russ Hauser, Sc.D., Jorge E. Chavarro, M.D., Sc.D.

Volume 101, Issue 5, Pages 1280–1287.e2

Abstract

Objective:

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 (

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.

Read the full text at: http://www.fertstert.org/article/S0015-0282(14)00141-1/fulltext


Fertility and Sterility

Editorial Office, American Society for Reproductive Medicine

Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.

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