Vitamin D: What’s the “right” level? – Harvard Health
A Randomized Study to Compare a Monthly to a Daily Administration of Vitamin D3 Supplementation – PMC
Evaluation of Ergocalciferol or Cholecalciferol Dosing, 1,600 IU Daily or 50,000 IU Monthly in Older Adults | The Journal of Clinical Endocrinology & Metabolism | Oxford Academic
Health Effects of Vitamin D supplementation: Lessons Learned from Randomized Controlled Trials and Mendelian Randomization Studies
