The white rice you’ll see almost everywhere in Vietnam is a source of carbohydrates, calcium, folate and iron. Brown, red, purple and black rices tend to have more vitamin and mineral content, including protein, zinc and fiber. Some of these also have antioxidant properties. No matter what color you’re eating, rice is low in calories. Combine rice with a selection of vegetables and other foodstuffs and it’s a filling and affordable way to guarantee a healthy, balanced meal.