diseases caused by nutritional deficiencies
Pellagra disease is caused by the chronic nutritional deficiency of niacin (Vit-B 3) in the food. Maize (corn) is a very poor source of niacin and in populations which mainly subsist on maize this disease is very common.Pellagra is common in Africa, Indonesia, North Korea, and China.ypothyroidism, goiter (thyroid enlargement) and cretinism diseases occurs when a decrease in thyroid hormone production is caused by poor nutritional intake of iodine. Iron : Iron deficiency anemia, which is due to deficiency of hemoglobin in the red blood cells, is characterized by severe fatigue and breathlessness.