Calcium and vitamin D intakes in an adult Canadian population.Can J Diet Pract Res. 2009 Spring; 70(1):21-7.CJ
Calcium and vitamin D intakes from food and supplements were estimated in Canadian men and women.
Calcium intakes from both diet and supplements and vitamin D intakes from fortified milk and supplements were estimated using cross-sectional data from 9423 randomly selected subjects aged 25 years or older, who were participating in a longitudinal study on osteoporosis. Subjects completed an abbreviated food frequency questionnaire administered by a trained interviewer between July 1995 and December 1997.
The mean (standard deviation) daily intake for calcium was estimated to be 1038 (614) mg for women and 904 (583) mg for men; for vitamin D, mean intakes were 5.6 (5.9) microg and 4.8 (5.5) microg for women and men, respectively.
Mean intakes for calcium and vitamin D in men and women under age 51 were close to the adequate daily intake levels. Older adults, however, may be at risk of deficiency.