Weight and BMI


How it can impact your fertility

  • Being overweight or underweight can negatively affect your fertility. Keeping your weight within the optimal BMI range of 20-25 is the single most important lifestyle factor that can affect your fertility. 
  • women and men with obesity [body mass index (BMI) ≥ 30 kg/m2] have a higher risk of infertility. This risk is extended to women who are underweight (BMI <20 kg/m2). 
  • Weight also has an impact on male fertility. Men with a high BMI produce fewer normal, motile sperm in the ejaculate as a result of the ‘heat’ effect of that tummy, so women who start a diet and exercise routine to boost their ‘fertility fitness’ should encourage their partners to join in.

Lifestyle support

Just some tweaks can make all the difference


Weight and BMI

How you can help yourself

  • To calculate you Body Mass Index, divide your weight in kilos by your height and then square it, for example Weight (kilos) divided by Height( in m) and then squared. This will give you an overall score.An example of this could be if you weigh 68kg and are 1.78m in height, the equation would be 68/(1.78 x 1.78) = 21.4, a healthy range.
  • Both men and women Women are advised to eat a healthy, balanced diet and partake in regular mild exercise, such as walking, yoga and pilates to maintain a good BMI range.

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