Male Fertility—Semen Quality Support
Men with idiopathic subfertility (under urologist/andrologist care).
men’s-health
fertility
andrology
improve semen motility/morphology/concentration
support oxidative status of spermatozoa
Core stack
L-carnitine (± acetyl-L-carnitine)
B+
Form: L-carnitine base or tartrate
Dose: 2000–3000 mg/day
With meals
3–6 months (spermatogenesis cycle)
Why: Meta-analyses of RCTs show improvements in motility/morphology and some pregnancy outcomes.
Cautions
- GI upset possible
- Rare fishy odor
- Potential interaction with warfarin (monitor INR)
Coenzyme Q10 (ubiquinone)
B
Form: softgel
Dose: 200–300 mg/day (split with meals)
Breakfast and/or dinner
3–6 months
Why: SRMAs of RCTs show improved semen parameters; evidence for live birth remains limited.
Cautions
- Generally safe; may lower warfarin effect
Adjuncts
Omega-3 (EPA+DHA)
C
Dose: 1000–2000 mg/day
With meals
Notes: Network meta-analyses suggest omega-3s may improve concentration; antioxidant patterns vary.
Monitoring
- Baseline and 3–6 month semen analyses
- Lifestyle factors (heat, alcohol, smoking)