Fig. 2. Plasma carotenoid concentrations before the dietary intervention (initial), after supplementation for three weeks with 96 g/day tomato puree (after three-week Tom supp), and after avoidance of tomato-product-rich foods for three weeks (after three-week depl). ß-carotene (), lutein (•), lycopene (), ß-cryptoxanthin (), -carotene (), zeaxanthin (). Means ± SEM, n = 20. For a given carotenoid, different letters indicate that the means are significantly different (p < 0.05), as assessed by ANOVA for paired values followed by the post-hoc Newman-Keuls’ test.