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Vitamin D deficiency has increased in frequency in recent years in the U.S. (JW Pediatr Adolesc Med Nov 4 2009) and other developed countries. In 2005, a British public health intervention began in an inner city with a high proportion of ethnic minority groups. The campaign provided free vitamin D supplements to children younger than 5 years (300 IU daily) and pregnant or lactating women (400 IU daily) who received state benefits. Home health visitors provided the first bottle of vitamin D–containing drops when infants were 2 weeks old. Education on the importance of vitamin D supplementation was provided to health professionals, and a public awareness campaign conveyed messages about vitamin D to the target population.
Symptomatic vitamin D…