Eating raw food will sate hunger, but is unhealthy for humans. This excellent cut spoils very quickly. Most wild carnivores love this meat.
— In-game Description

Raw Prime Meat is a consumable used to more quickly and effectively tame carnivores and can be cooked in the Campfire or Industrial Grill to produce Cooked Prime Meat. The Compsognathus can only be tamed with Raw Prime Meat. The Alpha Predators are the best source of Raw Prime Meat.