1. Phillips KM, Ruggio DM, Ashraf-Khorassani M: Phytosterol composition of nuts and seeds commonly consumed in the United States. J Agric Food Chem. 2005 Nov 30;53(24):9436-45. [PubMed:16302759 ]
  2. Biehler, E.; Alkerwi, A.; Hoffmann, L.; Krause, E.; Guillaume, M.; Lair, M. L.; Bohn, T.: Contribution of violaxanthin, neoxanthin, phytoene and phytofluene to total carotenoid intake: Assessment in Luxembourg Journal of Food Composition and Analysis. 2012;25:56.