In the wild, gorillas mainly eat succulent plants such as leaves, bamboo shoots, vines and wild celery, and also prey on some insects in a small amount. In the zoo, gorillas eat about 17 kg every day. The recipes are very rich, including celery, cabbage, banana leaves, cucumber and other vegetables, leaves, apples, pears, oranges, bananas and other fruits.

It is generally believed that gorillas are fruit-eating animals, but recent research shows that at least chimpanzees attack and kill small animals. Studies have shown that the DNA difference between gorillas, chimpanzees and humans is less than 1%, which is smaller than the difference between different kinds of horses. The digestive tracts of gorillas, chimpanzees and humans are almost identical. These higher primates, gorillas and chimpanzees are considered herbivores and occasional carnivores. They mainly eat fruits and vegetables, but if they are in front of them or orangutans are very hungry, they also eat eggs, insects, lizards and other small animals.