Their diet consists primarily of:
* Insects: Beetles, grasshoppers, locusts, etc.
* Small mammals: Mice, rats, gerbils, etc.
* Birds: Chicks, eggs, small birds
* Reptiles: Lizards, snakes, etc.
While they might occasionally nibble on fruits and vegetables, these are not essential for their nutrition. A diet lacking in meat would lead to severe health problems and eventually death for a Fennec fox.