Weight decrease improves live birth rates in obese women undergoing IVF: a pilot study

Area of Science:

• Reproductive Endocrinology
• Obesity Medicine
• Clinical Nutrition

Background:

• Obesity is linked to reduced pregnancy rates in assisted reproductive treatments.
• Limited research exists on pre-IVF interventions for obese women.

Purpose of the Study:

• To assess the impact of a 12-week diet and exercise intervention on pregnancy rates in obese women undergoing IVF.
• To evaluate if pre-IVF lifestyle modification improves fertility outcomes.

Main Methods:

• Pilot study with 41 obese women undergoing IVF.
• Randomized controlled trial comparing an intervention group (diet and exercise) with a control group.
• Intervention included individualized diet and supervised physical activity for 12 weeks prior to IVF.

Main Results:

• The intervention group achieved a mean weight loss of 5.4 kg.
• Similar oocyte and embryo yields were observed between groups.
• A non-significant trend towards higher clinical pregnancy rates after fresh embryo transfer.
• Significantly higher cumulative live birth rates in the intervention group (61.9% vs. 30%, P=0.045).

Conclusions:

• Pre-IVF diet and exercise intervention leads to significant weight loss in obese women.
• Lifestyle modification significantly increases cumulative live birth rates in IVF cycles.
• Weight loss interventions may be beneficial for improving fertility outcomes in obese women.