Sea turtles eat on average 1%-3% of their body weight a day. What our sea turtles eat depends on their species and injuries. Green Sea Turtles are herbivores, so they eat a lot of romaine lettuce and greens. Loggerhead Sea Turtles are carnivores, so they eat squid and fish. Our Kemp's Ridley, "Bender" is spoiled and will only eat shrimp stuffed squid.