Studies on hypercarotenemia due to excessive ingestion of carrot, pumpkin and papaw

Nekadage Don Amal Wageesha, Sagarika Ekanayake, Errol Radclif Jansz, Sanath Lamabadusuriya
International Journal of Food Sciences and Nutrition 2011, 62 (1): 20-5
Hypercarotenemia is diagnosed by yellowing of skin. The present study was carried out to study the carotenoids, their metabolites and the vitamin A levels in hypercarotenemics on reporting, changes in serum carotenoids following cessation of feeding carotenoid-bearing foods, and to determine the carotenoids in stools of hypercarotenemics and non-hypercarotenemics. Hypercarotenemic subjects (n = 35) were tested on reporting for a 2-month to 3-month period. Feces from hypercarotenemics (n = 5) and non-hypercarotenemics (n = 8) were extracted and subjected to reverse phase-high-performance liquid chromatography. A questionnaire was administered to parents (n = 35) of these hypercarotenemic children. The serum α- and β carotenoids varied from 119 g/dl to trace and from 149 g/dl to trace respectively, with the monohydroxy metabolites varying from 214 g/dl to nondetectable and polyhydroxy metabolites from 823 g/dl to 7.0 g/dl. Longitudinal studies indicated that serum carotenoid levels declined while vitamin A levels were maintained. α-Carotenes and β-carotenes were not detected in the feces of hypercarotenemics but were present in non-hypercarotenemics.

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