Brown rice is whole grain rice, with the inedible outer hull removed; white rice is the same grain with the hull, bran layer and cereal germ removed. Red rice, gold rice, and black rice (sometimes known as purple rice) are all whole rices, but with a differently-pigmented outer layer. Brown rice and white rice have similar amounts of calories and carbohydrates. White rice, unlike brown rice, has the bran and germ removed; and has different nutritional content. Brown rice is a whole grain and a good source of magnesium, phosphorus, selenium, thiamine, niacin, vitamin B6, and manganese, and is high in fiber.