Why should mealworms be fed in moderation rather than as a primary staple insect?

Answer

Their exoskeletons are harder to digest.

Mealworms are less suitable as a primary staple because their exoskeletons contain chitin that is harder for the gecko's digestive system to process compared to crickets or roaches.

Why should mealworms be fed in moderation rather than as a primary staple insect?
dietreptilegeckoLeopard Gecko