Contenuti di carotenoidi nel cetriolo (1):
Neoxantina e violaxantina : 16%
Luteina : 38%
Zeaxantina : 4%
Criptoxantina : 38%
Licopene : 0%
Alfa carotene : 0%
Beta carotene : 4%

In questo studio sui carotenoidi, una lista della frutta e verdura e le percentuali contenute (1).
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(1) Fruits and vegetables that are sources for lutein and zeaxanthin: the macular pigment in human eyes.
Olaf Sommerburg, Jan E E Keunen, Alan C Bird, Frederik J G M van Kuijk