Insectivores which fed on unsupplemented invertebrates have been found to suffer from vitamin A deficiencies .
A study of panther chameleons ( Furcifer pardalis ) found vitamin A deficiency shortened life spans and reduced reproduction rates .
Insectivores which fed on unsupplemented invertebrates have been found to suffer from vitamin A deficiencies , and a study of panther chameleons ( Furcifer pardalis ) found vitamin A deficiency shortened life spans and reduced reproduction rates .