Overall , intervention groups obtained higher 25(OH)D concentration than controls and there was obvious dose – response effect between intake dose and 25(OH)D concentration .
Baseline 25(OH)D concentration and age were significant indicators for 25(OH)D concentration .
Conclusions Regional- and age-specific recommended dosages of VitD supplements for population to achieve optimal 25(OH)D concentrations have been suggested
Background / Objectives Optimal doses of vitamin D ( VitD ) supplement in different population s are unclear .
We aim to evaluate the relationship between VitD supplementation and post-intervention serum 25-hydroxyvitamin D [ 25(OH)D ] concentration , to provide a recommended dosage of VitD for achieving an optimal 25(OH)D concentration for different population s .
Prevalence of vitamin D deficiency and its associated factors in three regions of Saudi Arabia
Objectives : To measure prevalence of vitamin D deficiency in Saudi Arabia , unveil the life style , nutritional habits and status , as well as identify the potential risk factors . Method : A school-based survey targeting Saudi school students and employees was conducted during the period from 2013 to 2014 using multistage cluster r and om sample in Central , Western and Eastern regions . The prevalence of vitamin D deficiency and difference between various population subgroups were calculated . Logistic regression analysis was used to determine the predictors of potential risk factors . Results : Prevalence of vitamin D deficiency was 49.5 % in students and 44 % in employees .  Life style was not adequate to protect against vitamin D depletion . Unhealthy nutritional habits were widespread , some manifested in childhood while others manifested later in life . Living in the Eastern region , females , 16 - 19 years of age , low economic class , obese and lack of omega 3 supplements were risk factors in students . Employees living in the Eastern region , females , middle-income class , carbonated soft drink consumers , and lack of multivitamin supplements were at higher risk . Conclusion : There is a need for a health awareness program using evidence -based recommendations . Screening for early detection and correction of the condition should be proposed to be part of the national health strategy . There is need for identifying the burden of vitamin D deficiency on other diseases to control and improve the prognosis of these conditions
Overall , intervention groups obtained higher 25(OH)D concentration than controls and there was obvious dose – response effect between intake dose and 25(OH)D concentration .
Baseline 25(OH)D concentration and age were significant indicators for 25(OH)D concentration .
Conclusions Regional- and age-specific recommended dosages of VitD supplements for population to achieve optimal 25(OH)D concentrations have been suggested
Background / Objectives Optimal doses of vitamin D ( VitD ) supplement in different population s are unclear .
We aim to evaluate the relationship between VitD supplementation and post-intervention serum 25-hydroxyvitamin D [ 25(OH)D ] concentration , to provide a recommended dosage of VitD for achieving an optimal 25(OH)D concentration for different population s .