130
Participants
Start Date
September 15, 2025
Primary Completion Date
December 15, 2025
Study Completion Date
December 31, 2025
Dietary Supplement: Vitamin D3
2000 IU per day for 6 weeks (two capsules of 800 IU plus one capsule of 400 IU), followed by 800 IU (one capsule of 800 IU) per day for 6 weeks.
Dietary Supplement: Vitamin D3 placebo
Three capsules for 6 weeks, followed by one capsule for 6 weeks.
Anhui Medical University, Hefei
Anhui Medical University
OTHER