As a complex carb, it is the primary source of energy for over half of the world’s people. Depending on the strain of rice, it can contain decent amounts of fibre, protein, vitamin B, iron and manganese. This means it can play a vital role against malnutrition. It is rich in nutrients, vitamins, and minerals, and is an excellent source of complex carbohydrates. There are many different types of rice with many different qualities. Quality factors relate to grain length, stickiness, aroma, texture, and flavor.