“…The profound interactions among nutrition, cognitive functions, and health have been recognized already many decades ago. Micronutrient status can affect cognitive function at all ages, and an insufficient vitamin supply can impair several aspects of cognitive functions and mood (Bellisle et al, 1998;Black, 2003;Heseker et al, 1995;Huskisson et al, 2007a;Malouf and Grimley Evans, 2008;Rosenberg and Miller, 1992;Rosenthal and Goodwin, 1985;Zimmermann et al, 2006). Vitamin and mineral deficiencies can lead to irreversible effects when occurring during pregnancy (Black, 2003), to impaired learning and cognitive functions when occurring during infancy/childhood (Black, 2003;Manger et al, 2004;Zimmermann et al, 2006), and to depression and dementia in the elderly (Rosenberg and Miller, 1992;Vollset and Ueland, 2005).…”