RT info:eu-repo/semantics/article T1 Treatment of vitamin D deficiency with calcifediol: Efficacy and safety profile and predictability of efficacy A1 Pérez Castrillon, José Luis A1 Usategui Martín, Ricardo A1 Pludowski, Pawel K1 Clinical nutrition K1 Cholecalciferol K1 Vitamin D deficiency K1 Vitamin D K1 Vitamina D K1 Safety profile K1 Food - Biotechnology K1 Food science K1 Pharmacology K1 Toxicity K1 Toxicology K1 Dietary supplements K1 Suplementos nutritivos K1 Calcifediol K1 3206 Ciencias de la Nutrición K1 3209 Farmacología K1 3214 Toxicología AB Calcifediol (25-OH-vitamin D3) is the prohormone of the vitamin D endocrine system. It is used to prevent and treat vitamin D deficiency. Calcifediol, as well as cholecalciferol (vitamin D3), is efficient and safe in the general population, although calcifediol has certain advantages over cholecalciferol, such as its rapid onset of action and greater potency. This review analyzed studies comparing the efficacy and safety of both calcifediol and cholecalciferol drugs in the short and long term (>6 months). Calcifediol was found to be more efficacious, with no increase in toxicity. We also assessed the predictability of both molecules. A 25OHD increase depends on the dose and frequency of calcifediol administration. In contrast, after cholecalciferol administration, 25OHD increase depends on more factors than dose and frequency of administration, also phenotypic aspects (such as obesity and malabsorption), and genotypic factors impacts in this increase. PB MDPI SN 2072-6643 YR 2022 FD 2022 LK https://uvadoc.uva.es/handle/10324/62673 UL https://uvadoc.uva.es/handle/10324/62673 LA eng NO Nutrients, 2022, Vol. 14, Nº. 9, 1943 NO Producción Científica DS UVaDOC RD 02-dic-2024