Adequate vitamins and minerals are essential for normal cognitive development. Marcus Pembrey (University College London) uses iodine as an example. Severe iodine deficiency is a known cause of learning difficulties, but even suboptimal maternal iodine in early pregnancy can reduce the childs verbal IQ. Early humans thrived on the coast with a rich iodine diet. Bonobos dive for iodine-rich aquatic plants. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 35290]