1. Vitamins are protectives against certain deficiency disease.

2. The knowledge source of iodine deficiency disease for the students was mainly from school (75.3%), and that for teacher was mainly from the newspaper (74.7%).

3. Objective To explore the effect of iodine deficiency disease ( IDD ) prevention and treatment iodized salt.

4. The survey shows the fruit tree iron deficiency disease is serious in alkaline soil and it causes bourgeon wither of trees, poor growth and lower or no yield.

5. Because of enrich foods, today deficiency disease are not as common as they once were.

6. Objective To explore the effect of iodine deficiency disease ( IDD ) prevention and treatment using iodized salt.

7. Deficiency disease A disease caused by deficiency of a particular essential nutrient (such as a MICRONUTRIENT or trace element), usually with a characteristic set of symptoms.

8. The steady absence of one vitamin in an otherwise complete diet causes a deficiency disease.