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The role of nitric oxide synthesis in erectile function.
Beetroot juice (nitrate-rich) and L‑citrulline act on two distinct biochemical routes that converge on nitric oxide (NO) production, and when combined they often—but not always—produce additive or syn...
Combination supplements pairing L‑arginine with either L‑citrulline or the pine‑bark extract Pycnogenol have produced stronger erectile‑function signals in small clinical trials and meta‑analyses than...
Clinical research shows both L-arginine and L-citrulline can modestly improve erectile function in some men, particularly those with mild to moderate or vasculogenic ED, but evidence is stronger and m...
L‑arginine at doses used in erectile dysfunction (1.5–6 g/day) acts as a nitric oxide precursor and can meaningfully lower blood pressure and interact with drugs that affect vascular tone, hemostasis,...
High-quality randomized, double‑blind, placebo‑controlled trials provide mixed but cautiously optimistic evidence that oral L‑arginine can improve erectile function in some men, particularly those wit...
Clinical trials and meta-analyses show that oral L‑arginine—an amino acid precursor to nitric oxide—has produced modest but statistically significant improvements in erectile function in men with mild...