As you see in the labels above, brown rice and white rice have similar macronutrient
content. However, that's not the whole story. Human bodies also need micronutrients, elements or substances, like minerals and vitamins, which are crucial in tiny amounts for normal growth and metabolism. Different micronutrients have different roles: some transport substances, some are important for vision, growth, or fighting infections. Others help make proteins and DNA, while others help the blood and other body tissues function properly.
Closely examine the table below and you'll see that brown rice provides higher amounts of many vitamins and minerals, including thiamin, niacin, vitamin B6, magnesium, phosphorous, copper, manganese and selenium. In fact, micronutrient deficiency is a problem in areas where un-enriched white rice makes up the bulk of people's diets.