J E Chavarro

PURPOSE: Poor fertilization during conventional IVF is difficult to predict in the absence of abnormal semen parameters; large-scale studies are lacking. The purpose of this study is to evaluate factors associated with low fertilization rat…

STUDY QUESTION: Is there an association between intake of fruits and vegetables and risk of laparoscopically confirmed endometriosis? SUMMARY ANSWER: Higher intake of fruits, particularly citrus fruits, is associated with a lower risk of e…

STUDY QUESTION: Are serum polyunsaturated fatty acids (PUFA) concentrations, including omega-3 (ω3-PUFA) and omega-6 (ω6-PUFA), related to ART outcomes? SUMMARY ANSWER: Serum levels of long-chain ω3-PUFA were positively associated with pro…

Much of the literature on the impact of male caffeine and alcohol intake on reproductive outcomes has utilized semen quality as a proxy for male fertility, although semen parameters have a limited predictive value for spontaneous pregnancy.…

STUDY QUESTION: Is pre-treatment alcohol and caffeine intake associated with infertility treatment outcomes among women undergoing ART? SUMMARY ANSWER: Low to moderate alcohol and caffeine intakes in the year prior to infertility treatment…

STUDY QUESTION: Is there a temporal relationship between endometriosis and infertility? SUMMARY ANSWER: Endometriosis is associated with a higher risk of subsequent infertility, but only among women age <35 years. WHAT IS KNOWN ALREADY: E…

STUDY QUESTION: Is dairy food consumption associated with live birth among women undergoing infertility treatment? SUMMARY ANSWER: There was a positive association between total dairy food consumption and live birth among women ≥35 years o…

Male factor etiology may be a contributing factor in up to 60% of infertility cases. Dietary intake of phytoestrogens has been related to abnormal semen quality and hormone levels. However, its effect on couple fecundity is still unclear. I…

STUDY QUESTION: Is paternal physical activity associated with semen quality parameters and with outcomes of infertility treatment? SUMMARY ANSWER: Among men presenting for infertility treatment, weightlifting and outdoor activities were as…

OBJECTIVE: To evaluate whether the amount or quality of carbohydrate in diet is associated with ovulatory infertility. SUBJECTS AND METHODS: In total, 18,555 married, premenopausal women without a history of infertility were followed as th…