Erectile Dysfunction
Erectile dysfunction is a type of male sexual dysfunction characterized by difficulty achieving or maintaining an erection. Erectile dysfunction can be caused by nerve or blood vessel damage, obesity, smoking, or stress.
Quick Answer
What it is
Erectile dysfunction is a type of male sexual dysfunction characterized by difficulty achieving or maintaining an erection. Erectile dysfunction can be caused by nerve or blood vessel damage, obesity, smoking, or stress.
Key findings
- Grade B: Erections (L-Carnitine)
- Grade B: Erectile Response (PT-141 (Bremelanotide))
- Grade B: Erectile Function (ED Patients) (PT-141 (Bremelanotide))
Safety
No specific caution or interaction language was detected in the current summary/outcome notes.
ℹ️ Quick Facts
Quick Facts: Erectile Dysfunction
- Supplements Studied:10
- Research Trials:12
- Total Participants:3,629
- Top Supplement:Tribulus Terrestris (B)
Evidence-Based Protocol
Supplement stack ranked by research quality
Primary Stack (Tier 1)
Converted to arginine, increasing nitric oxide production and improving blood flow to erectile tissue
Ginsenosides enhance nitric oxide release and relax smooth muscle in erectile tissue
Supporting Stack (Tier 2)
Improves energy metabolism in penile tissue; propionyl-L-carnitine may enhance PDE5 inhibitor response
Adaptogen that improves sexual desire and may enhance erectile function through non-hormonal mechanisms
May support testosterone levels and enhance libido; traditional use for sexual dysfunction
Pine bark extract that enhances endothelial nitric oxide production; often combined with L-arginine
May improve erectile function and sexual satisfaction; especially studied in SSRI-induced dysfunction
How It Works
Erectile dysfunction (ED) is the inability to achieve or maintain an erection sufficient for satisfactory sexual performance. It affects about 50% of men over 40 to some degree and becomes more common with age. ED is primarily a vascular condition—erections depend on adequate blood flow. Nitric oxide (NO) is the key molecule that relaxes blood vessels and allows blood to fill the erectile tissue. ED can also be an early warning sign of cardiovascular disease.
IMPORTANT: ED can signal underlying cardiovascular disease, diabetes, or hormonal problems. See a healthcare provider for evaluation. PDE5 inhibitors (Viagra, Cialis) remain the most effective treatment for most men.
Expected timeline: L-citrulline/Pycnogenol: days to weeks. Ginseng: 2-4 weeks. Maca/Tribulus: 4-8 weeks. Lifestyle factors (exercise, weight loss, not smoking) are also important.
Supplements for Erectile Dysfunction
Sorted by strength of evidence
Detailed Outcomes
Research Citations (1)
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