Consumption of iodized salt (% of households)

Definition: Consumption of iodized salt refers to the percentage of households that use edible salt fortified with iodine.

Description: The map below shows how Consumption of iodized salt (% of households) varies by country. The shade of the country corresponds to the magnitude of the indicator. The darker the shade, the higher the value. The country with the highest value in the world is Chile, with a value of 100.00. The country with the lowest value in the world is Mauritius, with a value of 0.00.

Source: United Nations Children's Fund, State of the World's Children.

See also: Country ranking, Time series comparison

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Limitations and Exceptions: Most of the data on consumption of iodized salt are derived from household surveys. For the data that are from household surveys, the year refers to the survey year.

Statistical Concept and Methodology: Iodine deficiency is the single most important cause of preventable mental retardation, it contributes significantly to the risk of stillbirth and miscarriage, and it increases infant mortality. A diet low in iodine is the main cause of iodine deficiency. It usually occurs among populations living in areas where the soil has been depleted of iodine. If soil is deficient in iodine, so are the plants grown in it, including the grains and vegetables that people and animals consume. There are almost no countries in the world where iodine deficiency has not been a public health problem. Every year about 40 million newborns in low- and middle-income countries remain unprotected from the lifelong consequences of brain damage associated with iodine deficiency disorders, which affect a child's ability to learn and to earn a living as an adult, thereby preventing children, communities, and countries from fulfilling their potential (UNICEF, Widely used and inexpensive, iodized salt is the best source of iodine, and a global campaign to iodize edible salt is significantly reducing the risks.

Aggregation method: Weighted average

Periodicity: Annual