Figure 1From: Randomised controlled trial of the effects of L-ornithine on stress markers and sleep quality in healthy workers Effect of L-ornithine supplementation on POMS. Means of the change from 0 weeks of each POMS score (A, tension-anxiety; B, depression-dejection; C, anger-hostility; D, vigor; E, fatigue; F, confusion) to 2, 4, 6 and 8 weeks: mean ± SE. White circles (○) indicate the placebo and black circles (●) indicate L-ornithine.Back to article page