Mealworms eat decaying grass, leaves, and sticks, as well as new plant growth. They also feed on dead insects and feces.
Mealworms survive off of eating decaying or decomposing matter including plants and insects. Mealworms will also eat fresh and decaying fruit and vegetables, grains and rotting food. As a result, they are often used in compost bins for the purpose of breaking down biodegradable household waste.
Mealworms are also used to feed pets such as frogs, birds, fish, reptiles and hedgehogs. Mealworms are high in protein and fat, making them an ideal staple in the diets of certain creatures. Mealworms are easy to raise and maintain. They are often kept in plastic tubs filled with poultry meal and fruits or vegetables.