| Vit D Receptor Gene Polymorphism (NCT05931705) | Ajman University | 2022-03-01 |
| Vitamin D Status and Bone Health of Older Adults in Care Facilities (NCT04399291) | University of Ulster | 2019-05-28 |
| Hypovitaminosis D Prediction Score (NCT02822651) | Hospices Civils de Lyon | 2016-09-19 |
| Vitamin D Supplementation and Immunity/Physical Performance (NCT03132103) | Bangor University | 2016-01-06 |
| A Comparison of Capsules and Oral Spray Solution as Methods of Delivering Vitamin D3 and Raising Status (NCT02608164) | University of Ulster | 2015-08-01 |
| Getting Vitamin D Dosing Right (NCT02474446) | Sheffield Children's NHS Foundation Trust | 2014-12-01 |
| Vitamin D Intervention in Infants (NCT01723852) | Helsinki University Central Hospital | 2013-01-01 |
| Vitamin D2, Muscle Damage, NASCAR Pitcrew (NCT01825616) | Appalachian State University | 2012-10-01 |
| The Impact of Vitamin D Status on in Vitro Fertilization (IVF) Outcomes (NCT01348594) | University of Toronto | 2011-04-01 |
| Vitamin D Retrospective Study and Role With Disease (NCT01798030) | Baltimore VA Medical Center | 2009-11-01 |
| Maintenance of Vitamin D Level by UVB Radiation (NCT01101243) | Bispebjerg Hospital | 2008-10-01 |
| UVB Light and Sunscreen (NCT00818467) | Creighton University | 2008-05-01 |
| The Relation Between Vitamin D Production and UVB Exposed Body Surface Area (NCT01042197) | Bispebjerg Hospital | 2008-01-01 |
| The Vitamin D Dose-Response Relationship (NCT01074541) | Bispebjerg Hospital | 2008-01-01 |
| Comparison of the Efficacy of Calcium-cholecalciferol Foodstuffs and Calcium-cholecalciferol Supplement (NCT00864539) | National Nutrition and Food Technology Institute | 2007-11-01 |
| Vitamin D Binding Protein (Gc) Allele Variation Effects Response to Vitamin D Treatment (NCT00650780) | Creighton University | 2007-10-01 |
| Effect of Different Vitamin D Vitamers on Vitamin D Status (NCT02860663) | University of Copenhagen | 2007-08-01 |
| Vitamin D Status and Muscle Function (NCT02858882) | University of Copenhagen | 2007-02-01 |