Response of Vitamin D after Magnesium Intervention in a Postmenopausal Population from the Province of Granada, Spain Vázquez Lorente, Héctor Herrera Quintana, Lourdes María Molina-López, Jorge Gamarra Morales, Yenifer López-González, Beatriz Miralles-Adell, Claudia Planells Del Pozo, Elena María Vitamin D Magnesium Liquid chromatography—tandem mass spectrometry Post-menopause This research received external funding by FIS Carlos III (REF.PI10/1993). Hector Vazquez-Lorente and Lourdes Herrera-Quintana are under a FPU fellowship from the Spanish Ministry of Education. Menopause is a stage of hormonal imbalance in women which, in addition to other physiopathological consequences, poses a risk of deficiency of key micronutrients such as magnesium and vitamin D. A study was made of the influence of a magnesium intervention upon vitamin D status in a postmenopausal population from the province of Granada (Spain). Fifty-two healthy postmenopausal women between 44–76 years of age were included. Two randomized groups—placebo and magnesium (500 mg/day)—were treated during eight weeks. Nutrient intake was assessed using questionnaires based on 72-h recall. Vitamin D was analyzed by liquid chromatography—tandem mass spectrometry. Baseline vitamin D proved deficient in over 80% of the subjects. The administration of magnesium resulted in significantly increased vitamin D levels in the intervention group versus the controls (p < 0.05). Magnesium supplementation improved vitamin D status in the studied postmenopausal women. 2020-11-05T13:10:32Z 2020-11-05T13:10:32Z 2020-07-30 journal article Vázquez-Lorente, H.; Herrera-Quintana, L.; Molina-López, J.; Gamarra-Morales, Y.; López-González, B.; Miralles-Adell, C.; Planells, E. Response of Vitamin D after Magnesium Intervention in a Postmenopausal Population from the Province of Granada, Spain. Nutrients 2020, 12, 2283. [doi:10.3390/nu12082283] http://hdl.handle.net/10481/64087 10.3390/nu12082283 eng http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España MDPI