Llamas eat mainly grass, shrubs, and lichens. Lichens are moss-like plants that grow on rocks and wood. Llamas are herbivores, which means they are plant eaters. They chew their food just a little and swallow it, then bring up a wad of cud. They then finish chewing it and swallow it again and finally, digest it. Cud is partly digested food. Llamas eat mainly hay, grass, and grain when in captivity. For treats, llamas like cut-up apples, carrots, broccoli, and orange peels. Because the llamas have 3 stomach compartments, the food must pass through all the stomachs during digestion.