Question: how is the relationship between the concepts of cognition and nutrition best expressed

title: Nutrition and cognition
text: Differences lie in the presentation of megaloblastic anemia induced by either folate or B deficiency . Megaloblastic anemia related to deficiency in B generally results in peripheral neuropathy , whereas folate - related anemia often results in affective , or mood disorders . Neurological effects are not often associated with folate - related megaloblastic anemia , although demyelinating disorders may eventually present . In one study , mood disturbances were recorded for the majority of patients presenting with megaloblastic anemia in the absence of B deficiency . In addition , folate concentrations within blood plasma have been found to be lower in patients with both unipolar and bipolar depressive disorders when compared with control groups . In addition , depressive groups with low folate concentrations responded less well to standard antidepressant therapy than did those with normal levels within plasma . However , replication of these findings are less robust .