Nut consumption improves sperm health parameters – in fact a study comparing the impact on sperm health of daily walnut consumption versus a male-fertility-focused multivitamin found that the walnuts resulted in greater improvements to sperm motility (movement) and morphology (normal shape).
Walnuts may help improve male fertility. They contain omega-3 fatty acids, which can improve sperm quality and quantity. Walnuts also contain alpha-linolenic acid (ALA), a plant-based omega-3 fatty acid.
According to a University of Delaware study, eating walnuts can boost sperm quality and prevent male infertility. A randomized clinical trial found that walnuts can improve sperm motility and morphology in men seeking care for infertility. Some recommend eating 75g of walnuts daily to improve sperm count in young men.