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World Iodine Deficiency Day 2025 Observed Globally on October 21.

Important Days | Dated: 23 Oct 2025

World Iodine Deficiency Day was observed on October 21 to raise awareness about the critical importance of iodine in preventing health disorders and promoting universal salt iodization.

🎯 Key Highlights:

  • The day is observed annually on October 21, and is also known as Global Iodine Deficiency Disorders Day.
  • The observance emphasizes the need for universal salt iodization as a safe and effective prevention strategy against IDD.
  • Iodine deficiency severely affects the mental and physical development of pregnant women and children.

💡 Other Important Facts:

  • Iodine is essential for healthy brain development.
  • Universal salt iodization is considered highly cost-effective.
  • The deficiency is a major public health concern in many countries.

📚 Test Your Knowledge:

Which day is observed globally on October 21 to raise awareness about a mineral deficiency?

Correct Answer: World Iodine Deficiency Day

🚀 Quick Recap:

About Iodine

  • Mineral: Essential trace element, Function: Crucial for thyroid hormones, Deficiency Effects: Goitre, intellectual disability.
  • Key Strategy: Consumption of iodized salt, Target Group: Pregnant women and infants.