In this chapter, Mafatu eats three things. He eats mangoes, breadfruit, and bananas.
At the beginning of the chapter, Mafatu has been washed up on the shore of the island and is very sore and weak. Even so, he manages to climb up a trail into the hills. While he is up there, he eats some mangoes that he finds.
Later, after he finds the altar of the cannibals, Mafatu makes himself a fire and has cooked food. He uses the fire to cook the breadfruit and the bananas. He eats all of the bananas and shares the breadfruit with Uri, his dog.