Research into micronutrients is beginning to show how deficiencies can impact neuropsychological functioning through the life of a patient. Historically, studies of a shortage of macronutrients, like protein, have shown an association with a lack of cognitive ability. However, until relatively recently, there was little research into how micronutrient deficiencies impact the brain, according to Laura Murray-Kolb, a nutritional scientist at Penn State University. One micronutrient that has an