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Paras Yadav: Understanding BMI’s Impact on IVF Outcomes
Paras Yadav/LinkedIn
Jan 6, 2026, 13:35

Paras Yadav: Understanding BMI’s Impact on IVF Outcomes

Paras Yadav, Embryologist Aveta IVF center, shared a post on LinkedIn:

“Headline: BMI and IVF: How Big of a Factor Is It Really?

Body: If you work in fertility, healthcare, or are personally navigating the IVF journey, you know success hinges on many factors. One we’re asked about constantly: How important is BMI?

The answer: critically important, but not the sole determinant. Here’s what the data tells us:

The Goldilocks Zone: Highest live birth rates are consistently seen in the normal BMI range (18.5-24.9). This is where hormonal balance and ovarian response are often optimal.

The Impact of High BMI: As BMI increases into overweight and obese categories, we see a trend:

  • Need for higher medication doses
  • Potential for fewer eggs retrieved
  • Reduced egg/embryo quality
  • Lower implantation and pregnancy rates
  • Increased risk of miscarriage and pregnancy complications

Studies show women with obesity can see a30-40% lower chance of a live birth compared to those with a normal BMI.

The Impact of Low BMI: Being underweight can also disrupt ovulation and hormonal cycles, significantly reducing the chances of success.

The Crucial ‘But’: Success does NOT fully depend on BMI. Age, ovarian reserve, sperm quality, and the cause of infertility are equally vital players. A normal BMI doesn’t guarantee success, just as a high BMI doesn’t guarantee failure.

Key Takeaway for Clinics and Patients: BMI is a major modifiable factor. Even a 5-10% reduction in weight for those in higher BMI categories can dramatically improve treatment response and safety. Many clinics have BMI guidelines not as a barrier, but to maximize the patient’s chance for a healthy outcome.”

Paras Yadav

Stay updated on all scientific advances in the field of fertility with Fertility News.

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