[HTML][HTML] Vitamin D fortification in the United States and Canada: current status and data needs
MS Calvo, SJ Whiting, CN Barton - The American journal of clinical nutrition, 2004 - Elsevier
Most circulating 25-hydroxyvitamin D originates from exposure to sunlight; nevertheless,
many factors can impair this process, necessitating periodic reliance on dietary sources to
maintain adequate serum concentrations. The US and Canadian populations are largely
dependent on fortified foods and dietary supplements to meet these needs, because foods
naturally rich in vitamin D are limited. Fluid milk and breakfast cereals are the predominant
vehicles for vitamin D in the United States, whereas Canada fortifies fluid milk and …
many factors can impair this process, necessitating periodic reliance on dietary sources to
maintain adequate serum concentrations. The US and Canadian populations are largely
dependent on fortified foods and dietary supplements to meet these needs, because foods
naturally rich in vitamin D are limited. Fluid milk and breakfast cereals are the predominant
vehicles for vitamin D in the United States, whereas Canada fortifies fluid milk and …