Prime objective of this lecture is to present on Deficiency Diseases. here briefly describe these topic associated with malnutrition. Nutritional deficiencies, known as malnutrition, are the result of your body not getting enough of the nutrients it needs. Children are more at risk for serious complications due to nutritional deficiencies than adults. Nutritional disease, any of the nutrient-related diseases and conditions that cause illness in humans. They may include deficiencies or excesses in the diet, obesity and eating disorders, and chronic diseases.