Why is it essential for keepers to "gut-load" commercially available feeder insects before offering them to captive Whiptails?

Answer

To pass along nutrients from seeds, plants, and fungi that wild insects ingest.

Gut-loading is a critical practice in reptile husbandry that directly addresses a nutritional gap between wild and captive prey. Insects living in natural environments consume a diverse diet of seeds, various plants, and fungi. When these wild insects are eaten, the lizard benefits from these secondary nutrients. Captive feeders, however, often have a restricted diet. Gut-loading involves feeding the feeder insects highly nutritious materials immediately prior to offering them to the lizard, ensuring that these essential nutrients are present within the feeder's digestive tract when consumed by the whiptail.

Why is it essential for keepers to "gut-load" commercially available feeder insects before offering them to captive Whiptails?
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