Male infertility and lifestyle factors

Data suggest an association between increasing BMI and reduced fertility in men, with one study suggesting a gain of 10kg decreases male fertility by approximately 10%. 1 

The effect of BMI on male fertility is multifactorial, with increased weight associated with changes in sex hormone profile, impaired sexual desire and function, and poorer semen parameters.

Factors that contribute to subfertility in obese men include:

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