PMID: 15217739Jun 26, 2004Paper

Iodine levels in food and soil in different regions in Cameroon

Santé : cahiers d'étude et de recherches francophones
Ibrahim TagaJ Y Ngogang

Abstract

Iodine deficiency diseases (IDD) are a public health problem in many developing countries, such as Cameroon. They are often the consequence of insufficient iodine intake and/or the effect of thiocyanate in foods such as cassava; this chemical inhibits iodine fixation by the thyroid gland. One method of combatting these diseases is to counsel and encourage the consumptions of iodine-rich foods. We accordingly undertook an evaluation of the iodine content of staple foods, the soil, and the salt in some zones of western Cameroon and in the capital. Food (63), salt (04) and soil (05) samples were collected in four villages of western Cameroon, and food (20), water (18) and salt samples (14) were collected in Yaoundé (central province). Iodine content in foods and soils was assessed by the catalytic destructive testing of thiocyanate by nitrate in the presence of iodine. Iodine content in water was determined colorimetrically after mineralization and in salt by volumetric methods. Results show that iodine levels in salt depend on its origin, but was much lower than the 50-100 ppm recommended by the WHO. Soil and water levels depended on the stream and the origin. Several of the more than 20 foods sampled from Yaoundé had iodine conc...Continue Reading

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