The results of this study were presented at the annual meeting of ESHRE (European Society of Human Reproduction and Embryology) by Dr Jorge Chavarro, Assistant Professor of Nutrition and Epidemiology at Harvard School of Public Health, USA.
“Different types of fat are known to have different effects on biological processes which may influence the outcome of assisted reproduction – such as underlying levels of inflammation or insulin sensitivity. However, it is not clear at this moment which biological mechanisms underlie the associations we found,” said Chavarro in the press release.
The study took place among 147 women having IVF at the Massachusetts General Hospital Fertility Center. According to the press release, they had preclinical assessments including oocyte development. They were also categorized into tertiles of fat intake, with outcomes compared in relation to the lowest tertile. Results were controlled for other sources of energy, infertility diagnosis, ovarian stimulation protocol, body mass index (BMI) and smoking status.
The study also found that women who ate polyunsaturated fat or the “bad fat” had more poor quality embryos. The connection of a diet high in saturated fat and lower sperm count has already been discovered.
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