In this post in the New York Times' "Opinionator" blog, journalist Sam Loewenberg examines the administration of micronutrient powders as a treatment option for anemia, "one of the most pervasive problems affecting the world's children, and one that goes largely unaddressed." "The presence of anemia usually signifies a host of other micronutrient deficiencies that are more difficult to test for," so micronutrient powders -- such as Sprinkles, the original and most common formulation -- "contain not just iron, but 15 essential vitamins and minerals, including iodine, zinc and vitamin A," he writes. "The Copenhagen Consensus, a group of expert economists convened in 2008 to determine the world's most effective aid interventions, put micronutrient supplements at the top of the list," he continues, adding, "According to their estimate, the cost of providing vitamin A and zinc to 80 percent of the world's 140 million children who are lacking them would cost $60 million per year. The benefits of this treatment would be worth more than $1 billion."