Safety of calcium and vitamin D supplements, a randomized controlled trial
| Autor: | Gianina Usera, Subhashini Katumuluwa, Alexandra Stolberg, John F. Aloia, Mageda Mikhail, Shahidul Islam, Andrew N. Hoofnagle |
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| Rok vydání: | 2018 |
| Předmět: |
Vitamin
Male medicine.medical_specialty Hypercalcaemia Endocrinology Diabetes and Metabolism Hypercalciuria chemistry.chemical_element Context (language use) 030204 cardiovascular system & hematology Calcium Gastroenterology law.invention 03 medical and health sciences chemistry.chemical_compound Kidney Calculi 0302 clinical medicine Endocrinology Randomized controlled trial Double-Blind Method law Internal medicine medicine Vitamin D and neurology Humans 030212 general & internal medicine Vitamin D Aged business.industry Middle Aged medicine.disease chemistry Hypercalcemia Kidney stones Female business |
| Zdroj: | Clinical endocrinology. 89(6) |
| ISSN: | 1365-2265 |
| Popis: | Objective It is anticipated that an intake of vitamin D found acceptable by Endocrine Society Guidelines (10 000 IU/day) with co-administered calcium supplements may result in frequent hypercalciuria and hypercalcaemia. This combination may be associated with kidney stones. The objective of this study was to compare the episodes of hypercalciuria and hypercalcaemia from calcium supplements co-administered with 10 000 IU or 600 IU vitamin D daily. This design allows a comparison of the Institute of Medicine recommendation for the RDA of vitamin D along with the upper limit of calcium intake with the high intake of vitamin D suggested by the Endocrine Society. Context Harms of currently recommended high intake of vitamin D have not been studied. Design The design was a randomized controlled trial with 2 groups with evaluation every 3 months for one year: (a) CaCO3 1200 mg/day with 10 000 IU vitamin D3 /day or (b) CaCO3 1200 mg/day with 600 IU vitamin D3 /day. Patients This study was conducted in an ambulatory research centre in healthy, white postmenopausal women. Measurements Serum and 24-hour urine calcium were measured. Results Hypercalcaemia and hypercalciuria occurred in both groups. At the final visit, 19/48 in the high dose D group had hypercalciuria. The odds of developing hypercalciuria were 3.6 [OR = 3.6(1.39, 9.3)] times higher in the high dose D group. The odds of developing hypercalcaemia did not differ between groups. Conclusions The safe upper level of vitamin D recommended by the Endocrine Society when accompanied by calcium supplements results in frequent hypercalciuria. The risk of kidney stones at these levels should be investigated. |
| Databáze: | OpenAIRE |
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