Iodine is one of the essential elements involved in human metabolism and growth and development, and it is also the main raw material for human body to synthesize thyroid hormone. Thyroid hormone participates in body metabolism and promotes brain growth and development.

Manifestations and hazards of iodine deficiency disorders:

Iodine deficiency disease (IDD) is a worldwide endemic disease. It is a general term for a series of damages caused by iodine malnutrition due to iodine deficiency in the natural environment and insufficient intake of human body:

1. Iodine deficiency leads to growth retardation, poor physical development, inattention, learning difficulties, poor language expression ability and logical thinking ability of children.

2. Iodine deficiency in pregnant women can lead to premature birth, abortion, stillbirth, congenital malformations, congenital deaf mute children, etc.

3. When iodine deficiency is serious, although there are no typical symptoms of cretinism, there is still mental retardation or developmental delay, the so-called cretinism.

4. The damage of iodine deficiency disorders to human health is serious and multifaceted, and has a very far-reaching impact on society, especially on population quality and economic development. In fact, the harm of iodine deficiency disorders to human beings is global.

What are the hazards of iodine excess?

When iodine is consumed excessively for a long time, it will also cause abnormal secretion of thyroid hormone, resulting in autoimmune thyroiditis, iodine excess goiter, hypothyroidism, hyperthyroidism, papillary thyroid cancer and other diseases. Therefore, the intake of iodine should be appropriate, too much or too little is not appropriate.