Yes, rice is a grain. It’s the edible seed of a grass, Oryza sativa (Asian rice) or, less commonly, Oryza glaberrima (African rice), which makes it a cereal grain like wheat, corn, oats, and barley.
Whole grain vs. refined
- Whole grain rice (brown, black, red, and wild-style varieties) keeps all three parts of the kernel: the fiber-rich bran, the nutrient-dense germ, and the starchy endosperm.
- White rice has had the bran and germ milled away, leaving mostly the endosperm. It’s still a grain, just a refined one, with less fiber and fewer vitamins and minerals. Many countries enrich it with iron and B vitamins.
Botanical details
- Each grain of rice is technically a fruit called a caryopsis, in which the seed coat is fused to the fruit wall. This is true of all cereal grains.
- Wild rice, despite the name, is a different plant. It comes from aquatic grasses in the genus Zizania, though it’s also a grass seed and is eaten as a grain.
Rice in the diet
Rice is a staple for more than half the world’s population, and it’s a major source of calories across Asia, Africa, and Latin America. It’s naturally gluten-free, which is why it’s a common substitute for wheat.
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