Global Iodine Deficiency Disorder Prevention Day or World Iodine Deficiency Day
Global Iodine Deficiency Disorder Prevention Day or World Iodine Deficiency Day is held on October 21. This event in the third decade of the month October is annual. 
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World Iodine Deficiency Day observed on 21st October aims to create awareness of the use of iodine and highlights the consequence of iodine deficiency. Iodine Deficiency Disorder (IDD) is caused due to lack of iodine in the diet and. About 72 percent of the world's population is iodine deficient.
In fact, iodine deficiency is the largest preventable cause of learning difficulties in the world. In extreme cases a deficiency can result in congenital thyroid hormone deficiency, historically known as 'cretinism.
The only organization that concentrates on the deficiency of iodine is the International Council for the Control of Iodine Deficiency Disorders (ICCIDD). It plays a major role in the promotion and success of Global Iodine Deficiency Day.
Similar holidays and events, festivals and interesting facts
International Pediatrics Day on October 20 (The Day of Pediatrics or Día Internacional de Pediatría was instituted in 1973, during the World Congress of Pediatrics held in Argentina, in commemoration of the founding of Argentine Pediatric Society);
International Mastocytosis & Mast Cell Diseases Awareness Day on October 20
National Down Syndrome Day in South Africa on October 20
Pharmacy Technician Day on October 20 (PTDay was first endorsed by Pharmacy Technician Educators Association, American Association of Pharmacy Technicians, Inc. – AAPT and Pharmacy Technician Certification Board in 2015. It has been observed the third Tuesday in October since 1991);
Information Overload Day on October 20
Pediatrician Day in Argentine on October 20
International Day of the Nacho on October 21 (nachos first appeared in 1943 in Piedras Negras, a small Mexican city which is very near to the U.S. military base Fort Duncan, in Texas);
International Day of Culture for Concord and Peace on October 21 (organized by Aljabart Charitable Foundation);
International Pronouns Day on October 21
National Dental Hygiene Day in Thailand on October 21
National Day of Fight against Obesity in Argentina on October 21 (Held on the third Wednesday in October);
International Caps Lock Day on October 22
Fechner Day on October 22 (International observance);
International Day for the Protecting Men's Nervous System From Women's Violence on October 22
World Traditional Medicine Day on October 22
Bavarian Dentists' Day on October 22 (Beginning on Thursday of the fourth week of October)
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