A negative correlation between arginine and various symptoms, including anxiety (r = − 0.54), fatigue (r = − 0.57), loss of concentration (r = − 0.53), thoracic pain (r = − 0.46), dyspnea (r = − 0.42), myalgia (r = − 0.47), arthralgia (r = − 0.42) as well as with IL-17 (r = − 0.62) was observed. Here, IL17A is linked to Myalgia.