How BMI Impacts Fertility: Understanding the Connection

High BMI can reduce fertility in both men and women, with underweight individuals facing ovulation issues and overweight individuals experiencing lower IVF success rates. SGF requires BMI under 40 for IVF cycles.

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Key Takeaways

Understanding BMI Categories and Fertility Risks

BMI categories (under 18.5 = underweight, 18.5–24.9 = normal, over 30 = obese) directly correlate with fertility challenges. High BMI increases IVF complications like lower egg retrieval rates and higher miscarriage risks.

Underweight Women and Ovulation Challenges

Women with a BMI under 18.5 often ovulate infrequently or not at all due to insufficient body fat. Even minor weight gain can restore reproductive function in underweight individuals.

Insulin Resistance in Overweight Women and Fertility

Overweight women face insulin resistance, leading to hormonal imbalances that disrupt ovulation. This contributes to polycystic ovary syndrome (PCOS) and reduced response to fertility medications.

Impact of Male BMI on Sperm Health

Overweight men are more likely to have abnormal semen parameters, including low sperm count and motility. Maintaining a healthy BMI is critical for male fertility.

SGF’s BMI Guidelines for Fertility Treatments

Shady Grove Fertility requires a BMI under 40 for IVF/egg freezing and under 50 for IUI/frozen embryo transfers. Weight management is emphasized to optimize treatment outcomes.

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