Published on Saturday, May 9, 2009 by admin Lizard Diet Maybe yech to you, but yum to them! Small to medium lizards are often insectivores, with the larger sometimes partial or total vegetarians. Lizards are accustomed to eating whole animals. Crickets are the best, with less shell or "chitin," which is indigestible. Mealworms are good, but they have more chitin than crickets and can eventually block the gut...