Q.11 What are deficiency disease ? Give three examples.
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Diseases that occur due to lack of nutrients over a long period are called deficiency diseases or nutritional disease. Deficiency of one or more nutrients can cause diseases or disorders in our body. For example, wheat is rich in carbohydrates, but poor in nutrients like proteins and fats.
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A disease caused by the lack of an element in the diet, usually a particular vitamin or mineral.
Iodine deficiency. Goiter.
Selenium deficiency. Keshan disease.
Iron deficiency. Iron deficiency anemia.
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