Actively Recruiting
Vitamin D3 Supplementation to Improve Cardiovascular Health in Overweight or Obese Adolescents in China
Led by Anhui Medical University · Updated on 2025-11-17
130
Participants Needed
2
Research Sites
2 weeks
Total Duration
AI-Summary
What this Trial Is About
Researchers are investigating whether vitamin D3 supplementation can improve cardiovascular metabolic health in Chinese adolescents who are overweight or obese and have vitamin D deficiency. This randomized controlled trial aims to compare changes in cardiometabolic risk between those receiving vitamin D3 and those receiving a placebo over a 12-week period. Participants will be randomly assigned to receive either vitamin D3 supplements or a placebo. The vitamin D3 group will take 2000 IU daily for the first 6 weeks, followed by 800 IU daily for the next 6 weeks. The placebo group will receive matching placebo capsules on the same schedule. For the first 6 weeks, doses are given every two weeks, then every three weeks for the following 6 weeks. During the study, researchers will monitor changes in cardiometabolic risk scores from the start to the end of the 12-week intervention. Additional measurements include body mass index, waist circumference, skinfold thickness, blood pressure, blood glucose, blood lipids, and the TyG index. Participants health and vitamin D levels will be assessed throughout to evaluate the effects of supplementation.
CONDITIONS
Brief Title
Effect of Vitamin D on Cardiovascular Metabolic Risk in Overweight/Obesity Adolescents in China
Research Team
P
Puyu Su, PhD
P
Puyu Su, Professor
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