Carotenodermia in men with elevated carotenoid intake from foods and beta-carotene supplements.

We evaluated the relation between plasma levels of carotenoids and carotenodermia in 30 men receiving carotenoid supplementation for 42 d. Five subjects each were randomly assigned to one of six treatment groups: 30 mg purified beta-carotene supplement, 12 mg beta-carotene supplement, 272 g cooked carrots, 300 g cooked broccoli, 180 g tomato juice, and placebo. Definite carotenodermia was observed only in the five subjects who took 30 mg of purified beta-carotene daily. Carotenodermia was first noted between 25 and 42 d after supplementation and persisted from 14 to greater than 42 d posttreatment and was observed only after plasma total carotenoid levels exceeded 4.0 mg/L. These observations may be useful to investigators planning clinical trials with beta-carotene and to clinicians assessing the significance of carotenodermia in men taking beta-carotene supplements or following diets high in carotenoid-containing foods.