| 1,25(OH)2D | 1,25-dihydroxyvitamin D |
| 25(OH)D | 25-hydroxy vitamin D |
| BMI | Body mass index |
| CKD | Chronic kidney disease |
| CVD | Cardiovascular disease |
| IU | International unit |
| kg BW | Kilogram, body weight |
| RCTs | Randomized controlled clinical trials |
| T2D | Type 2 diabetes mellitus |
| UV | Ultraviolet |
| VDR | Vitamin D receptor |