Pet turtles and tortoises have specific nutritional needs to maintain their health. They require a balanced diet that includes a variety of foods such as commercial turtle pellets, leafy greens (e.g., kale, collard greens), vegetables (e.g., carrots, bell peppers), fruits (e.g., strawberries, bananas), and occasional protein sources like insects or cooked lean meats. Calcium supplements and exposure to UVB lighting are also essential for their bone health and shell development. Additionally, it's crucial to provide fresh, clean water for drinking and swimming to ensure proper hydration.