Is ED just part of aging?

Common but not inevitable — it strongly correlates with vascular health. New-onset ED is a legitimate reason for cardiovascular screening, especially under 60.

Do testosterone boosters work for ED?

Only if hypogonadism is confirmed by testing. Over-the-counter T boosters lack evidence; true deficiency is treated medically.

Mens Health

Erectile Function

Natural support for healthy erectile function and blood flow.

TL;DR

Erectile function reflects vascular health — exercise, weight, sleep, and cardiovascular risk control are foundational. Citrulline has the best supplement evidence; PDE5 inhibitors remain the proven pharmacotherapy.

Why It Matters

Erectile dysfunction is often an early marker of endothelial dysfunction and cardiovascular disease. Nitric oxide availability is central: citrulline (converted to arginine) improved erection hardness in a controlled trial, and combination with PDE5 inhibitors has supportive data. New ED warrants cardiovascular risk assessment, not just symptom treatment.

How to Measure

IIEF-5 questionnaire monthly; track morning erection frequency as a vascular proxy.

Biomarkers

IIEF-5 score

Blood pressure

Morning erection frequency

Morning total testosterone (if symptoms suggest deficiency)

Optimization Protocol

Citrulline 1.5–3 g/day (3 g improved hardness scores versus placebo). Address cardiovascular fundamentals: exercise, weight, smoking cessation, alcohol moderation. If low testosterone is suspected, test morning total T. Persistent ED: see a physician — PDE5 inhibitors are first-line, and ED is a cardiovascular screening opportunity.