Research from the University of Alberta has reported that children with celiac disease should have supplementation of bone-boosting vitamins like vitamin D and vitamin K. Forty-three adolescents and children ages three years to eighteen years were involved in the study.
The research indicates that children with celiac disease can suffer from low bone density and poor bone health. Addition of vitamin D and vitamin K may increase bone strength and reduce the risk of osteoporosis and bone fractures.
Physical activity that can build bone strength is believed to be helpful. Exercise taken out of doors in the sunlight can increase these health benefits by raising their vitamin D levels as well.
"The study revealed that the children were getting less than 50 per cent of their recommended dietary intake of Vitamin K, and that they also suffered from low levels of Vitamin D, which can be raised through increased exposure to sunlight and by eating fortified dairy products."
http://www.sciencedaily.com/releases/2010/07/100722132443.htm