Which crops provide the main food source for more than half of Earth’s population?

The main food source for more than half of the world's population is rice (Oryza sativa).12

While cereals—which are members of the grass family (Poaceae)—collectively provide more than 50 percent of the world's calories, rice specifically serves as the primary staple food for roughly half of the global population, particularly throughout East and Southeast Asia. Other major cereal crops that are vital to human nutrition include wheat and corn (maize).3124