The Lancet Global Health article is the first evidence-based global estimation of micronutrient (vitamin and minerals) deficiencies that systematically analyzed data on population-representative surveys from preschool-aged children and women of reproductive age.
This new analysis suggests that the widely cited figure of 2 billion people globally suffering from micronutrient deficiencies is a major underestimate. Such deficiencies prompt what we call "hidden hunger," which is compromising immune systems; hindering child growth, development and school performance; and limiting human potential worldwide.