Vetafarm Ectotherm Insect Food 100g. Ectotherm Insect Food is a veterinary formulated food for insects, specifically designed to improve reproduction in colonies and substantially increase the nutritional value of insects fed to reptiles. Indications: Insects naturally lack important nutrients such as calcium and vitamins. When used as the primary food source, it substantially improves the nutritional value of feeder insects. Ectotherm Insect Food provides high levels of protein, vitamins and minerals in a palatable form for crickets, mealworms and woodies.