Loggerhead sea turtles (Caretta caretta) are opportunistic carnivores that primarily feed on invertebrates and fish. In the wild, they eat a variety of food items depending on their life stage and geographic location. For debilitated sea turtles in rehabilitation, part of the healing process is to provide a species-specific, balanced diet that provides nutrition similar to that of a wild diet to allow injured, ill, malnourished and incapacitated turtles to gain weight and improve body condition. However, developing the right nutritionally balanced formula is challenging.