Pet turtles require a balanced diet that includes commercial turtle pellets, leafy green vegetables, mealworms, crickets, waxworms and fruit. Mixing and matching a variety of foods each day is ideal for a turtle's diet.
Turtles should eat insects as snacks or food supplements about three times per week. Turtles also need 1 to 2 teaspoons of leafy vegetables, such as kale or collard greens, three to four times per week. Food pellets and formulated canned food provide turtles with the nutrients they need to stay healthy.
Turtles also benefit from supplements such as multivitamins or vitamin D3. Dusting calcium powder on the turtle's food twice per week keeps the animal strong.
Infant and adolescent turtles need a constant supply of food pellets to promote growth, whereas adults only require food pellets four to five times per week. Owners should feed aquatic turtles on dry ground instead of water. Putting insects in a water habitat increases ammonia levels, which can harm the animal's shell and skin. Fresh fruits and vegetables belong in a dish separate from the other food, and the dish should include more vegetables than fruit. After a few hours, owners should remove leftover vegetables from the habitat to avoid spoilage.