Fig. 3. Plasma antioxidant trace metals status before the dietary intervention (initial), after supplementation for three weeks with 96 g/day tomato puree (after three-week Tom supp), after avoidance of tomato-product-rich foods for three weeks (after three-week depl). (•) selenium status as evaluated by GSHPx (Red blood cell glutathione peroxidase) activity (nmole/mg hemoglobin). () copper status as evaluated by plasma copper (µmol/L). () zinc status as evaluated by plasma zinc (µmol/L). Means ± SEM, n = 20. There was no significant effect of the dietary intervention on trace metal status, as assessed by ANOVA for paired values.