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Arginine

Arginine is a nitric oxide donor and vasodilator.  Take 1-3 g/day, based on LPI meeting. In a few people, arginine causes constipation.  Arginine also increases herpes virus cold sores. In that case, co-administer lysine which decreases cold sores. (link: arginine; source: LPI meeting 2009; added 6/2009)

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