None listed
Conditions
Interventions
Group 2:Vitamin D3 supplement of 800 IU / day
Control group:None
Group 1:Vitamin D3 supplement of 400 IU / day
Sponsors
National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention; Key Laboratory of Trace Element Nutrition, National Health Commission of the People's Republic of China
Eligibility
Sex/Gender
Female
Age
22 Years to 50 Years
Inclusion criteria
Inclusion criteria: Han nationality, female (22-50 years old), BMI 18.5-28 kg/m^2, baseline 25(OH)D < 30 ng/mL.
Exclusion criteria
Exclusion criteria: 1. Taking calcium, magnesium or vitamin D supplements in the last 1 month or taking medications that may affect vitamin D metabolism, calcium absorption or cardiovascular disease risk; 2. Patients with abnormal liver and kidney function, diabetes, hypertension, asthma, malabsorption and other related diseases affecting gastrointestinal absorption.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Vitamin D;Parathyroid hormone;Bone mineral density;Blood biochemistry indexes; | — |
Secondary
| Measure | Time frame |
|---|---|
| Markers of bone turnover; | — |
Countries
China
Contacts
Public ContactYang Lichen
Outcome results
None listed