For Healthcare Professionals Only

 While fertility discussions often focus on women, male reproductive health is just as critical especially given that sperm take approximately 74 days to develop. This provides a three-month window for meaningful dietary and lifestyle intervention (Agarwal et al., 2014).

1. Adopt a Mediterranean-Style Dietary Pattern

Numerous studies have linked a Mediterranean-style dietary pattern with improved sperm quality. This diet is rich in vegetables, fruits, whole grains, legumes, fish, olive oil, and nuts, and has been shown to enhance sperm concentration, motility, morphology, and total count (Karayiannis et al., 2018; Salas-Huetos et al., 2018).

A systematic review published in Human Reproduction Update confirmed that adherence to this dietary pattern correlates with better semen parameters, likely due to its antioxidant and anti-inflammatory properties (Salas-Huetos et al., 2018).

2. Minimise Alcohol and Ultra-Processed Foods

Excessive alcohol consumption has been associated with reduced testosterone levels and impaired spermatogenesis (Jensen et al., 2014). Additionally, diets high in ultra-processed foods such as refined snacks, sugary drinks, and processed meats are linked to inflammation and poorer semen quality (Chavarro et al., 2009; Nassan et al., 2018).

Encouraging patients to reduce intake of these foods and prioritise whole, nutrient-dense options may yield measurable improvements in sperm parameters over time.

3. Reduce Oxidative Stress Through Antioxidant Support

Oxidative stress is a leading cause of sperm dysfunction, contributing to DNA fragmentation, poor motility, and reduced fertilisation potential (Agarwal et al., 2014). Antioxidants such as vitamins C and E, selenium, zinc, CoQ10, and glutathione are known to mitigate oxidative damage to sperm.

A meta-analysis of antioxidant supplementation in men with subfertility found significant improvements in sperm motility and DNA integrity (Showell et al., 2014). These nutrients can be obtained from both food and supplementation, depending on the patient's baseline diet and needs.

4. Address Weight, Stress, and Lifestyle Habits

Obesity is associated with hormonal imbalances, increased scrotal temperature, and elevated oxidative stress, all of which negatively affect sperm quality (Palmer et al., 2012). Supporting patients in achieving a healthy weight through diet and exercise can improve reproductive outcomes.

Stress may also play a role by disrupting the hypothalamic–pituitary–gonadal axis, leading to altered testosterone levels and reduced sperm production (Eskiocak et al., 2006). Incorporating sleep hygiene, physical activity, and stress management techniques may support overall hormonal health.

Smoking cessation is another crucial intervention. Tobacco exposure is directly associated with reduced sperm count and increased DNA fragmentation (Sharma et al., 2016).

5. Consider Targeted Supplementation

While diet forms the foundation of fertility health, supplementation may help optimise nutrient intake, particularly for nutrients shown to support sperm development and function. A well-formulated male fertility supplement should include key antioxidants (vitamins C and E, selenium), zinc, L-carnitine, CoQ10, and essential amino acids.

Randomised controlled trials have shown that supplementation with these nutrients may improve sperm count, motility, morphology, and reduce DNA fragmentation (Gual-Frau et al., 2015; Buscemi et al., 2019).

 

Conclusion

With a three-month spermatogenesis cycle, men have a clear opportunity to positively influence their fertility outcomes. Healthcare professionals can support male patients by recommending evidence-based diet and lifestyle changes, addressing modifiable risk factors, and guiding supplement use where appropriate. Small, consistent changes can yield significant reproductive benefits and may also contribute to overall health and wellbeing.

References

• Agarwal, A., Mulgund, A., Hamada, A., & Chyatte, M. R. (2015). A unique view on male infertility around the globe. Reproductive Biology and Endocrinology, 13(1), 37.
• Buscemi, L., et al. (2019). Effect of antioxidant therapy on sperm quality: meta-analysis of clinical trials. Andrology, 7(4), 446–456.
• Chavarro, J. E., et al. (2009). Diet and lifestyle in the prevention of ovulatory disorder infertility. Obstetrics and Gynecology, 113(5), 1050–1056.
• Eskiocak, S., et al. (2006). Effect of psychological stress on the L-arginine-nitric oxide pathway and semen quality. Brazilian Journal of Medical and Biological Research, 39(5), 581–588.
• Gual-Frau, J., et al. (2015). Antioxidant treatment and assessment of sperm DNA fragmentation in infertile men. Journal of Assisted Reproduction and Genetics, 32(4), 465–472.
• Jensen, T. K., et al. (2014). Habitual alcohol consumption associated with reduced semen quality and changes in reproductive hormones. BMJ Open, 4(9), e005462.
• Karayiannis, D., et al. (2018). Adherence to the Mediterranean diet and IVF success rate among non-obese women. Human Reproduction, 33(3), 494–502.
• Nassan, F. L., et al. (2018). Dietary patterns and semen quality in young men. Human Reproduction, 33(1), 120–131.
• Palmer, N. O., et al. (2012). Diet and exercise in the management of obesity-related male infertility. Human Fertility, 15(4), 245–253.
• Salas-Huetos, A., Bulló, M., & Salas-Salvadó, J. (2018). Dietary patterns, foods and nutrients in male fertility parameters and fecundability: a systematic review of observational studies. Human Reproduction Update, 24(1), 100–123.
• Sharma, R., Biedenharn, K. R., Fedor, J. M., & Agarwal, A. (2016). Lifestyle factors and reproductive health: taking control of your fertility. Reproductive Biology and Endocrinology, 11(1), 66.
• Showell, M. G., Brown, J., Yazdani, A., Stankiewicz, M. T., & Hart, R. J. (2014). Antioxidants for male subfertility. Cochrane Database of Systematic Reviews, (12).