Observational studies show that low zinc status or deficiency is associated with low testosterone levels, poor sperm quality, and an increased risk of male infertility (38).
Although there is no guaranteed cure, these lifestyle suggestions may be beneficial if nutrient deficiencies or low testosterone levels are contributing factors.
According to the available research, D-AA supplements may increase fertility in men with low testosterone levels, but they rarely show these additional benefits in men with normal to high testosterone levels.
These findings are supported by observational evidence indicating that ashwagandha supplements may improve sperm counts, sperm motility, antioxidant status, and testosterone levels (44, 45).
High vitamin D levels are linked to greater sperm motility, but the evidence is inconsistent (29, 30).
How do you know if you have healthy sperm?
Your ejaculate alone cannot diagnose the state of your sperm. Semen analysis is the most effective method for learning about it. These tests were previously conducted in a clinic setting, but more options are now available, such as sperm testing kits that can be used at home.
For any sperm test, you must provide a sample for analysis. Semen analysis measures different parameters that can tell you about your fertility including (WHO, 2010):
Signs and symptoms of low sperm count
There may not be any symptoms of low sperm count in a man other than infertility. However, some guys may experience these signs of low sperm count:
Just keep in mind that while these symptoms may not be the same as a doctor’s diagnosis, they may be suggestive of a problem. To be certain, consult your OB/GYN or a fertility expert.