Osteoporosis is a common chronic condition associated with progressive loss of bone mineral density (BMD) and compromised bone strength, with increasing risk of fracture over time. Vegetarian diets have been shown to contain lower amounts of calcium, vitamin D, vitamin B-12, protein, and n-3 (ω-3) fatty acids, all of which have important roles in maintaining bone health. Although zinc intakes a...

The objective of this study was to determine the effect of increased vitamin D fortification (250 IU/serving) of high-temperature, short-time (HTST)-processed 2% fat milk, UHT-processed 2% fat chocolate milk, and low-fat strawberry yogurt on the sensory characteristics and stability of vitamin D during processing and storage. Three replicates of HTST pasteurized 2% fat milk, UHT pasteurized 2% ...

OBJECTIVES The aim of the study was to determine the prevalence of vitamin D deficiency and identify the relation between 25-hydroxyvitamin D (25-(OH)D) levels and the consumption of dietary sources of vitamin D or exposure to anticonvulsants in girls and women with Rett syndrome (RTT). SUBJECTS AND METHODS Retrospective review of the medical records of 284 girls and women with RTT to determi...

OBJECTIVES To measure and compare dietary vitamin D intake among women in Ontario using a modified Block 1998 (US) food frequency questionnaire (FFQ) before and after modification for Canadian-specific vitamin D food fortification. METHODS An age-stratified random sample of 3,471 women in Ontario (aged 25-74) was identified using random digit dialing methods. Standard US food values and a mod...

h E safety of vitamin-D supplementation has been the subject of editorials and statements by pediatric associations, both in Great Britain 1-1 and in the United States 8-11 for more than 12 years, ever since infantile hypercalcemia was correlated with hypervitaminosis D. •• Frank overdose with vitamin D, and hyperreactivity to amounts of vitamin D far lower than those usu· ally deemed toxic, ha...

INTRODUCTION Folic acid (FA) is a synthetic compound commonly added for voluntary fortification of food products in many European countries. In our country, food composition databases (FCDB) lack comprehensive data on FA fortification practices and this is considered a priority research need when undergoing nutritional assessment of the population. METHODS A product inventory was collected an...

BACKGROUND In elderly individuals with low serum vitamin B-12, those who have high serum folate have been reported to have greater abnormalities in the following biomarkers for vitamin B-12 deficiency: low hemoglobin and elevated total homocysteine (tHcy) and methylmalonic acid (MMA). This suggests that folate exacerbates vitamin B-12-related metabolic abnormalities. OBJECTIVE We determined w...

High performance liquid chromatographic methods for measuring the concentration of vitamins A and D in fluid milk were validated and used to assess the level of these nutrients in Ontario retail milk samples. Thirteen and fifteen fortified milk samples were tested for vitamins A and D, respectively. Repeatability relative standard deviation values for vitamins A and D in milk were generally les...

The use of vitamin D has never been approached in the same way that we would expect to see for any modern drug. Unlike other nutrients, we have never had dietary intakes of vitamin D as a reasonable reference point for deciding on how much of this nutrient/drug that people should be consuming. The ambiguity between “nutrient” and “drug” is reasonable when it comes to vitamin D, because there we...