Calcium and vitamin D nutrition and bone disease of the elderly

Abstract

In this cross-sectional study, the prevalence of vitamin D deficiency [serum 25-hydroxyvitamin D (25 (OH) D) <50 nmol/L] was 87.8% among Saudi Arabian men. There was a linear inverse relationship between serum 25(OH) D and intact parathyroid hormone (PTH) levels, but without a threshold of 25(OH) D at which the intact PTH values become balanced. Introduction: Vitamin D insufficiency and/or deficiency have now reached epidemic proportions and have been linked to low bone mineral density (BMD) due to, certain lifestyle factors, and obesity in adults. This relationship is not well documented in Saudi Arabian men. This study examines the relationship between vitamin D status, intact parathyroid hormone (intact PTH), and lifestyle factors among Saudi Arabian men. Methods:This cross-sectional study has involved 1331 females (aged 6-98) and 169 males (aged 13-83) _ living in Saudi and Non-Saudi who were randomly selected and medically examined. Results:Deficiency (25(OH) D;50 nmol/L) and insufficiency (≥50-75 nmol/L) were presented. Deficiency (<50 nmol/L) were 91.4% in Non-Saudi, 91.2% in Saudi, and Insufficiency (>=50-