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All samples were subsequently cultivated at 37 C for 24 h
L-arginine, another amino acid, also boosts nitric oxide production
Frequency: as needed (approximately 2 hours before sexual activity)
Nat Microbiol 10:16301647 Liu Y, Yan D, Chen R, Zhang Y, Wang C, Qian G (2025) Recent insights and advances in gut microbiotas influence on host antiviral immunity
Some studies have also used doses up to 4,500 mg per day
It is often used consistently over time rather than on an as-needed basis
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