R-Zilla gut load cricket and insect food gives store-bought insects the nutritional value of wild prey. Carbs, calcium and calories for complete nourishment. Economical use just 1/4 teaspoon per insect. Much of reptile nutrition comes from the gut load of the crickets, mealworms and king mealier they eat. The problem a captive insect's sparse diet can't match the complete nutrition of their wild counterparts. Gut Load was created to prefill each insect. Simply place a supply in the insect enclosure 24 hours before feeding to a reptile. Available in 4-ounce.