It depends on the kind of rice you choose.
White rice is considered a nutritionally inferior "refined grain" because its bran and germ are removed during the milling process, which strips away B vitamins, iron and fiber. Though white rice is typically enriched with iron and B vitamins, fiber is not added back.
Brown rice is the same thing as white rice but is a "whole grain," because only its inedible outer husk is removed. Since brown rice retains its bran and germ, it's a better source of antioxidants, vitamin E and fiber.