Most turtle species are omnivores, and many species have diets that consists of both meat and vegetables. Aquatic turtles typically have a higher percentage of meat in their diet, consisting of between 65 percent to 90 percent. Semi-aquatic turtles, on the other hand, tend to have a more balanced diet.
The exact percentage of meat and vegetables in a turtle's diet vary according to the exact species. Turtles kept in captivity or as pets require a carefully monitored diet to ensure that nutritional needs are met. Tortoises, on the other hand, are typically herbivores and require a 100 percent plant-based diet.