Carotenoids ...conversion in chameleons...

kinyonga

Chameleon Enthusiast
I'm still trying to make sense of this...as to whether chameleons can convert it or not...

In humans..."no vitamin A activity can be derived from lutein, zeaxanthin, and lycopene"...and..."Dietary lutein and zeaxanthin are selectively taken up into the macula of the eye"...
https://lpi.oregonstate.edu/mic/dietary-factors/phytochemicals/carotenoids
If this is true in insects then do these nonprovitamin A's count as vitamin A at all when a chameleon eats an insect?
 
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