ArticleJournal of health, population, and nutrition2026
Effectiveness of the national vitamin D supplementation program: evaluation of children aged 0-3 years in Karabük province.
Article in Journal of health, population, and nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundIn Turkey, free vitamin D drop supplementation is provided during the first 12 months after birth. This study aimed to investigate the effectiveness of the National Vitamin D Supplementation Program among children aged 0-12 months in the Karabük province.
methodsThe study examined the vitamin D levels of children aged 0-36 months. Data were collected to assess the prevalence of vitamin D deficiency and sufficiency within the age intervals of 0-12, 12-24, and 24-36 months.
resultsThe findings revealed that the majority of children fail to attain the desired vitamin D levels. While only one-fourth of the patients attained adequate vitamin D levels within the first 12 months, this proportion progressively declined to one-tenth as they approached the 36th month. CONCLUSION AND RECOMMENDATION: Reforms are necessary in the current strategy for vitamin D supplementation, which is provided free of charge before the age of one. To enhance the effectiveness of the program, healthcare providers in primary care settings should play a central role. The new strategy should focus on a thorough explanation and, in particular, the implementation of a control mechanism. Such a mechanism can ensure oversight by encouraging reminders.
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