Pet turtles have varied diets depending on their species. As a general guideline, a pet turtle's diet may include commercial turtle pellets, leafy greens (such as kale and dandelion greens), aquatic plants, live or frozen insects (like crickets and mealworms), and cooked meats (such as fish or poultry). It's important to research the specific dietary needs of your pet turtle's species to provide a balanced and nutritious diet.