RCTHumann = 1202009
Effects of N-acetylcysteine on semen parameters and oxidative/antioxidant status.
Plain-language summary
This study looked at whether N-acetylcysteine (NAC), an antioxidant supplement, could improve semen quality and oxidative stress in men with unexplained infertility. It randomly assigned 120 men with idiopathic infertility to take either 600 mg of NAC daily or a placebo for three months, then compared semen parameters and oxidative stress markers between the groups. The study found that NAC improved semen volume, motility, and viscosity, and boosted antioxidant capacity while lowering oxidative stress markers. However, it did not affect sperm count or shape.
Key findings
- NAC improved semen volume, motility, and viscosity.
- NAC increased total antioxidant capacity and reduced oxidative stress markers.
- NAC had no effect on sperm count or morphology.
How to analyze the study yourself
- Study type
- Randomized trials assign people to groups by chance, so differences between groups are unlikely to come from who chose what, but they may not reflect real-world use over longer periods.
- Population
- Men with idiopathic infertility (no known cause).
- Funding
- Not reported
- Takeaway
- This study found that NAC improved semen quality and oxidative stress in men with unexplained infertility. If you are trying to conceive and have fertility concerns, it may be worth asking your doctor about NAC.