Scientific consensus on the prevention of iron deficiency anaemia wasdescribed in a 1989 WHO monograph (4). Since then, however, knowledgeof the consequences of iron deficiency - even in the absence of anaemia -has evolved, while fortification technology has improved considerably.Furthermore, national, regional, and global efforts to overcome micronutrientmalnutrition have gathered accelerated momentum. As a result, an overallreview of the strategies for preventing iron deficiency - together with a closerexamination of prevalence indicators and methods of monitoring programmesof prevention - have become appropriate and timely.
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