Nutritional Supplement

Vitamin D

Where to Find It

Cod liver oil is an excellent dietary source of vitamin D, as are vitamin D-fortified foods. Traces of vitamin D are found in egg yolks and butter. However, the majority of vitamin D in the body is created during a chemical reaction that starts with sunlight exposure to the skin. Cholecalciferol (vitamin D3) is the animal form of this vitamin.

Best Form to Take

Vitamin D3 (cholecalciferol) is the form of vitamin D produced in the skin from sunlight exposure, and is also the form of vitamin D present in food. As a supplement, therefore, it is to be preferred over vitamin D2 (ergocalciferol).134

How to Use It

People who get plenty of sun exposure do not require supplemental vitamin D, since sunlight increases vitamin D synthesis when it strikes bare skin. Although the recommended dietary allowance for vitamin D is 200 IU per day for adults, there is some evidence that elderly people need 800 to 1,000 IU per day for maximum effects on preserving bone density and preventing fractures.135,136,137,138 Sun-deprived people should take no less than 600 IU per day and ideally around 1,000 IU per day.139,140

References

1. Al Faraj S, Al Mutairi K. Vitamin D deficiency and chronic low back pain in Saudi Arabia. Spine 2003;28:177-9.

2. Lotfi A, Abdel-Nasser AM, Hamdy A, et al. Hypovitaminosis D in female patients with chronic low back pain. Clin Rheumatol 2007;26:1895-901.

3. De Torrente de la Jara G, Pecoud A, Favrat B. Musculoskeletal pain in female asylum seekers and hypovitaminosis D3. BMJ 2004;329:156-7.

4. Prakash S, Shah ND. Chronic tension-type headache with vitamin D deficiency: casual or causal association? Headache 2009;49:1214-22.

5. Wepner F, Scheuer R, Schuetz-Wieser B, et al. Effects of vitamin D on patients with fibromyalgia syndrome: A randomized placebo-controlled trial. Pain 2014;155:261–8.

6. Klein GL, Chen TC, Holick MF, et al. Synthesis of vitamin D in skin after burns. Lancet 2004;363:291-2.

7. Garrel D. Burn scars: a new cause of vitamin D deficiency? Lancet 2004;363:259-60.

8. Thys-Jacobs S. Vitamin D and calcium in menstrual migraine. Headache 1994;34:544-6.

9. Thys-Jacobs S. Alleviation of migraines with therapeutic vitamin D and calcium. Headache 1994;34:590-2.

10. Brot C, Jorgensen N, Madsen OR, et al. Relationships between bone mineral density, serum vitamin D metabolites and calcium: phosphorus intake in healthy perimenopausal women. J Intern Med 1999;245:509-16.

11. Sahota O. Osteoporosis and the role of vitamin D and calcium-vitamin D deficiency, vitamin D insufficiency and vitamin D sufficiency. Age Ageing 2000;29:301-4.

12. Dawson-Hughes B, Dallal GE, Krall EA, et al. Effect of vitamin D supplementation on wintertime and overall bone loss in healthy postmenopausal women. Ann Intern Med 1991;115:505-12.

13. Adams JS, Kantorovich V, Wu C, et al. Resolution of vitamin D insufficiency in osteopenic patients results in rapid recovery of bone mineral density. J Clin Endocrinol Metab 1999;84:2729-30.

14. Macdonald HM, Wood AD, Aucott LS, et al. Hip bone loss is attenuated with 1000 IU but not 400 IU daily vitamin D3: a 1-year double-blind RCT in postmenopausal women. J Bone Miner Res 2013;28:2202–13.

15. Nordin BE, Baker MR, Horsman A, Peacock M. A prospective trial of the effect of vitamin D supplementation on metacarpal bone loss in elderly women. Am J Clin Nutr 1985;42(3):470-4.

16. Lips P, Graafmans WC, Ooms ME, et al. Vitamin D supplementation and fracture incidence in elderly persons. Ann Intern Med 1996;124:400-6.

17. Komulainen M, Tuppurainen MT, Kroger H, et al. Vitamin D and HRT: no benefit additional to that of HRT alone in prevention of bone loss in early postmenopausal women. A 2.5-year randomized placebo-controlled study. Osteoporosis Int 1997;7:126-32.

18. Droisy R, Collette J, Chevallier T, et al. Effects of two 1-year calcium and vitamin D3 treatments on bone remodeling markers and femoral bone density in elderly women. Curr Ther Res 1998;59:850-62.

19. Chapuy MC, Arlot ME, Duboeuf F, et al. Vitamin D3 and calcium to prevent hip fractures in the elderly women. N Engl J Med 1992;327:1637-42.

20. Maki BE, Holliday PJ, Topper AK. A prospective study of postural balance and risk of falling in an ambulatory and independent elderly population. J Gerontol 1994;49:M72-84.

21. Leboff MS, Hawkes WG, Glowacki J, et al. Vitamin D-deficiency and post-fracture changes in lower extremity function and falls in women with hip fractures. Osteoporos Int 2008;19:1283-90.

22. Pfeifer M, Begerow B, Minne HW, et al. Effects of a short-term vitamin D and calcium supplementation on body sway and secondary hyperparathyroidism in elderly women. J Bone Miner Res 2000;15:1113-8.

23. Broe KE, Chen TC, Weinberg J, et al. A higher dose of vitamin D reduces the risk of falls in nursing home residents: a randomized, multiple-dose study. J Am Geriatr Soc 2007;55:234-9.

24. Abraham GE, Grewal H. A total dietary program emphasizing magnesium instead of calcium. J Reprod Med 1990;35:503-7.

25. Hyppönen E, Boucher BJ. Adiposity, vitamin D requirements, and clinical implications for obesity-related metabolic abnormalities. Nutr Rev 2018 09;76(9):678–692.

26. Slusher AL, McAllister MJ, Huang CJ. A therapeutic role for vitamin D on obesity-associated inflammation and weight-loss intervention. Inflamm Res 2015 Aug;64(8):565–75.

27. Lotfi-Dizaji L, Mahboob S, Aliashrafi S, et al. Effect of vitamin D supplementation along with weight loss diet on meta-inflammation and fat mass in obese subjects with vitamin D deficiency: A double-blind placebo-controlled randomized clinical trial. Clin Endocrinol (Oxf) 2019 01;90(1):94–101.

28. Abboud M, Liu X, Fayet-Moore F, et al. Effects of Vitamin D Status and Supplements on Anthropometric and Biochemical Indices in a Clinical Setting: A Retrospective Study. Nutrients 2019 Dec;11(12):3032.

29. Mason C, Xiao L, Imayama I, et al. Vitamin D3 supplementation during weight loss: a double-blind randomized controlled trial. Am J Clin Nutr 2014 May;99(5):1015–25.

30. Rak K, Bronkowska M. Immunomodulatory Effect of Vitamin D and Its Potential Role in the Prevention and Treatment of Type 1 Diabetes Mellitus-A Narrative Review. Molecules 2018;24.

31. Maddaloni E, Cavallari I, Napoli N, Conte C. Vitamin D and Diabetes Mellitus. Front Horm Res 2018;50:161–76.

32. Grammatiki M, Karras S, Kotsa K. The role of vitamin D in the pathogenesis and treatment of diabetes mellitus: a narrative review. Hormones (Athens) 2019;18:37–48.

33. Cadario F, Savastio S, Ricotti R, et al. Administration of vitamin D and high dose of omega 3 to sustain remission of type 1 diabetes. Eur Rev Med Pharmacol Sci 2018;22:512–5.

34. Cadario F, Savastio S, Rizzo A, et al. Can Type 1 diabetes progression be halted? Possible role of high dose vitamin D and omega 3 fatty acids. Eur Rev Med Pharmacol Sci 2017;21:1604–9.

35. Gregoriou E, Mamais I, Tzanetakou I, et al. The Effects of Vitamin D Supplementation in Newly Diagnosed Type 1 Diabetes Patients: Systematic Review of Randomized Controlled Trials. Rev Diabet Stud 2017;14:260–8.

36. Felicio K, de Souza A, Neto J, et al. Glycemic Variability and Insulin Needs in Patients with Type 1 Diabetes Mellitus Supplemented with Vitamin D: A Pilot Study Using Continuous Glucose Monitoring System. Curr Diabetes Rev 2018;14:395–403.

37. Bogdanou D, Penna-Martinez M, Filmann N, et al. T-lymphocyte and glycemic status after vitamin D treatment in type 1 diabetes: A randomized controlled trial with sequential crossover. Diabetes Metab Res Rev 2017;33.

38. Wierzbicka E, Szalecki M, Pludowski P, et al. Vitamin D status, body composition and glycemic control in Polish adolescents with type 1 diabetes. Minerva Endocrinol 2016;41:445–55.

39. Savastio S, Cadario F, Genoni G, et al. Vitamin D Deficiency and Glycemic Status in Children and Adolescents with Type 1 Diabetes Mellitus. PLoS One 2016;11:e0162554.

40. Hafez M, Hassan M, Musa N, et al. Vitamin D status in Egyptian children with type 1 diabetes and the role of vitamin D replacement in glycemic control. J Pediatr Endocrinol Metab 2017;30:389–94.

41. Aljabri K, Bokhari S, Khan M. Glycemic changes after vitamin D supplementation in patients with type 1 diabetes mellitus and vitamin D deficiency. Ann Saudi Med 2010;30:454–8.

42. Grammatiki M, Karras S, Kotsa K. The role of vitamin D in the pathogenesis and treatment of diabetes mellitus: a narrative review. Hormones (Athens) 2019;18:37–48.

43. Leung P. The Potential Protective Action of Vitamin D in Hepatic Insulin Resistance and Pancreatic Islet Dysfunction in Type 2 Diabetes Mellitus. Nutrients 2016;8:147.

44. Sacerdote A, Dave P, Lokshin V, Bahtiyar G. Type 2 Diabetes Mellitus, Insulin Resistance, and Vitamin D. Curr Diab Rep 2019;19:101.

45. Rafiq S, Jeppesen P. Is Hypovitaminosis D Related to Incidence of Type 2 Diabetes and High Fasting Glucose Level in Healthy Subjects: A Systematic Review and Meta-Analysis of Observational Studies. Nutrients 2018;10.

46. Li X, Liu Y, Zheng Y, et al. The Effect of Vitamin D Supplementation on Glycemic Control in Type 2 Diabetes Patients: A Systematic Review and Meta-Analysis. Nutrients 2018;10.

47. Wu C, Qiu S, Zhu X, Li L. Vitamin D supplementation and glycemic control in type 2 diabetes patients: A systematic review and meta-analysis. Metabolism 2017;73:67–76.

48. Lee C, Iyer G, Liu Y, et al. The effect of vitamin D supplementation on glucose metabolism in type 2 diabetes mellitus: A systematic review and meta-analysis of intervention studies. J Diabetes Complications 2017;31:1115–26.

49. Mirhosseini N, Vatanparast H, Mazidi M, Kimball S. The Effect of Improved Serum 25-Hydroxyvitamin D Status on Glycemic Control in Diabetic Patients: A Meta-Analysis. J Clin Endocrinol Metab 2017;102:3097–110.

50. Alam U, Arul-Devah V, Javed S, Malik R. Vitamin D and Diabetic Complications: True or False Prophet? Diabetes Ther 2016;7:11–26.

51. Moukayed M, Grant W. Linking the metabolic syndrome and obesity with vitamin D status: risks and opportunities for improving cardiometabolic health and well-being. Diabetes Metab Syndr Obes 2019;12:1437–47.

52. Sacerdote A, Dave P, Lokshin V, Bahtiyar G. Type 2 Diabetes Mellitus, Insulin Resistance, and Vitamin D. Curr Diab Rep 2019;19:101.

53. Wimalawansa S. Associations of vitamin D with insulin resistance, obesity, type 2 diabetes, and metabolic syndrome. J Steroid Biochem Mol Biol 2018;175:177–89.

54. Grober U, Holick M. Diabetes Prevention: Vitamin D Supplementation May Not Provide Any Protection If There Is No Evidence of Deficiency! Nutrients 2019;11.

55. Lee P, Chen R. Vitamin D as an analgesic for patients with type 2 diabetes and neuropathic pain. Arch Intern Med 2008;168:771-2.

56. Aloia JF, Li-Ng M. Re: epidemic influenza and vitamin D. Epidemiol Infect 2007;135:1095-6.

57. Camargo CA Jr, Ganmaa D, Frazier AL, et al. Randomized trial of vitamin D supplementation and risk of acute respiratory infection in Mongolia. Pediatrics 2012;130:e561-e567.

58. Aloia JF, Li-Ng M. Re: epidemic influenza and vitamin D. Epidemiol Infect 2007;135:1095-6.

59. Laaksi I, Ruohola JP, Mattila V, et al. Vitamin D supplementation for the prevention of acute respiratory tract infection: a randomized, double-blinded trial among young Finnish men. J Infect Dis 2010;202:809–14.

60. Grant CC, Kaur S, Waymouth E, et al. Reduced primary care respiratory infection visits following pregnancy and infancy vitamin D supplementation: a randomised controlled trial. Acta Paediatr 2015;104:396–404.

61. Rees JR, Hendricks K, Barry EL, et al. Vitamin D3 supplementation and upper respiratory tract infections in a randomized, controlled trial. Clin Infect Dis 2013;57:1384–92.

62. Denlinger LC, King TS, Cardet JC, et al. Vitamin D supplementation and the risk of colds in patients with asthma. Am J Respir Crit Care Med 2016;193:634–41.

63. Abou-Raya A, Abou-Raya S, Helmii M. The effect of vitamin D supplementation on inflammatory and hemostatic markers and disease activity in patients with systemic lupus erythematosus: a randomized placebo-controlled trial. J Rheumatol 2013;40:265–72.

64. Lima GL, Paupitz J, Aikawa NE, et al. A randomized double-blind placebo-controlled trial of vitamin D supplementation in adolescents and young adults with juvenile-onset SLE: improvement in disease activity and fatigue scores. Arthritis Care Res 2015 May 18 [Epub ahead of print].

65. Urashima M, Segawa T, Okazaki M, et al. Randomized trial of vitamin D supplementation to prevent seasonal influenza A in schoolchildren. Am J Clin Nutr 2010;91:1255-60.

66. de la Guía-Galipienso F, Martínez-Ferran M, Vallecillo N, et al. Vitamin D and cardiovascular health. Clin Nutr 2021;40:2946–57.

67. Lin L, Zhang L, Li C, et al. Vitamin D and Vitamin D Receptor: New Insights in the Treatment of Hypertension. Curr Protein Pept 2019;20:984–95.

68. Zhang D, Cheng C, Wang Y, et al. Effect of Vitamin D on Blood Pressure and Hypertension in the General Population: An Update Meta-Analysis of Cohort Studies and Randomized Controlled Trials. Prev Chronic Dis 2020;17:E03.

69. Legarth C, Grimm D, Wehland M, et al. The Impact of Vitamin D in the Treatment of Essential Hypertension. Int J Mol Sci 2018;19:455.

70. He S, Hao X. The effect of vitamin D3 on blood pressure in people with vitamin D deficiency: A system review and meta-analysis. Medicine (Baltimore) 2019;98:e15284.

71. Zhu YB, Li ZQ, Ding N, et al. The association between vitamin D receptor gene polymorphism and susceptibility to hypertension: a meta-analysis. Eur Rev Med Pharmacol Sci 2019;23:9066–74.

72. Gotsman I, Shauer A, Zwas DR, et al. Vitamin D deficiency is a predictor of reduced survival in patients with heart failure; vitamin D supplementation improves outcome. Eur J Heart Fail 2012;14:357-66.

73. Ford JA, MacLennan GS, Avenell A, et al. Cardiovascular disease and vitamin D supplementation: trial analysis, systematic review, and meta-analysis. Am J Clin Nutr 2014;100:746–755.

74. Kessel L. Sick sinus syndrome cured by...vitamin D? Geriatrics 1990;45(8):83-5.

75. Hoogendijk WJ, Lips P, Dik MG, et al. Depression is associated with decreased 25-hydroxyvitamin D and increased parathyroid hormone levels in older adults. Arch Gen Psychiatry 2008;65:508-12.

76. Lansdowne ATG, Provost SC. Vitamin D3 enhances mood in healthy subjects during winter. Psychopharmacology 1998;135:319-23.

77. Arasteh K. A beneficial effect of calcium intake on mood. J Orthomolec Med 1994;9:199-204.

78. Khoraminya N, Tehrani-Doost M, Jazayeri S, et al. Therapeutic effects of vitamin D as adjunctive therapy to fluoxetine in patients with major depressive disorder. Aust N Z J Psychiatry 2012;Oct 23:[Epub ahead of print].

79. Stumpf WE, Privette TH. Light, vitamin D and psychiatry. Role of 1,25 dihydroxyvitamin D3 (soltriol) in etiology and therapy of seasonal affective disorder and other mental processes. Psychopharmacology (Berl) 1989;97:285-94 [review].

80. Gloth FM III, Alam W, Hollis B. Vitamin D vs broad spectrum phototherapy in the treatment of seasonal affective disorder. J Nutr Health Aging 1999;3:5-7.

81. Frandsen TB, Pareek M, Hansen JP, Nielsen CT. Vitamin D supplementation for treatment of seasonal affective symptoms in healthcare professionals: a double-blind randomised placebo-controlled trial. BMC Res Notes 2014;7:528.

82. Samochocki Z, Bogaczewicz J,Jeziorkowska R, et al. Vitamin D effects in atopic dermatitis. J Am Acad Dermatol 2013 May 2 [Epub ahead of print].

83. Camargo CA Jr, Ganmaa D, Sidbury R, et al. Randomized trial of vitamin D supplementation for winter-related atopic dermatitis in children. J Allergy Clin Immunol. 2014;134:831-835.e1.

84. Hata TR, Audish D, Kotol P, et al. A randomized controlled double-blind investigation of the effects of vitamin D dietary supplementation in subjects with atopic dermatitis. J Eur Acad Dermatol Venereol 2013;May 3:[Epub ahead of print].

85. Klein GL, Chen TC, Holick MF, et al. Synthesis of vitamin D in skin after burns. Lancet 2004;363:291-2.

86. Garrel D. Burn scars: a new cause of vitamin D deficiency? Lancet 2004;363:259-60.

87. Parsad D, Saini R, Nagpal R. Calcipotriol in vitiligo: A preliminary study. Pediatr Dermatol 1999;16:317-20.

88. Taheri M, Baheiraei A, Foroushani AR, et al. Treatment of vitamin D deficiency is an effective method in the elimination of asymptomatic bacterial vaginosis: A placebo-controlled randomized clinical trial. Indian J Med Res 2015;141:799–806.

89. Lasco A, Catalano A, Benvenga S. Improvement of primary dysmenorrhea caused by a single oral dose of vitamin D: results of a randomized, double-blind, placebo-controlled study. Arch Intern Med 2012;172:366-7.

90. Gorham ED, Garland FC, Garland CF. Sunlight and breast cancer incidence in the USSR. Int J Epidemiol 1990;19:820-4.

91. Anzano MA, Smith JM, Uskokovic, et al. 1a,25-dihydroxy-16-ene-23-yne-26,27-hexafluorocholecalciferol (Ro24-5531), a new deltanoid (vitamin D analogue) for prevention of breast cancer in the rat. Cancer Res 1994;54:1653-6.

92. Demdirpence E, Balaguer P, Trousse F, et al. Antiestrogenic effects of all-trans-retinoic acid and 1,25-dihydroxyvitamin D3 in breast cancer cells occur at the estrogen response element level but through different molecular mechanisms. Cancer Res 1994;54:1458-64.

93. John EM, Schwartz GG, Dreon DM, Koo J. Vitamin D and breast cancer risk: the NHANES I Epidemiologic follow-up study, 1971-1975 to 1992. Cancer Epidemiol Biomarkers Prev 1999;8:399-406.

94. Robien K, Cutler GJ, Lazovich D. Vitamin D intake and breast cancer risk in postmenopausal women: the Iowa Women's Health Study. Cancer Causes Control 2007;18:775-82.

95. Vink-van Wijngaarden T, Pols HA, Buurman CJ, et al. Inhibition of breast cancer cell growth by combined treatment with vitamin D3 analogues and tamoxifen. Cancer Res 1994;54:5711-7.

96. James SY, Merceer E, Brady M, et al. ERB1089, a synthetic analogue of vitamin D, induces apoptosis in breast cancer cells in vivo and in vitro. Br J Pharmacol 1998;125:953-62.

97. Eisman JA, Barkla DH, Tutton PJM. Suppression of in vitro growth of human cancer solid tumor xenografts by 1,25-dihydroxyvitamin D3. Cancer Res 1987;47:21-5.

98. Ravid A, Rocker D, Machlenkin A, et al. 1,25-dihydroxyvitamin D3 enhances the susceptibility of breast cancer cells to doxorubicin-induced oxidative damage. Cancer Res 1999;59:862-7.

99. Bower M, Colston KW, Stein RC, et al. Topical calcipotriol treatment in advanced breast cancer. Lancet 1991;337:701-2.

100. Colston KW, Berger U, Coombes RC. Possible role for vitamin D in controlling breast cancer cell proliferation. Lancet 1989;I:188-91.

101. Eisman JA, Suva LJ, Martin TJ. Significance of 1,25-dihydroxyvitamin D3 receptor in primary breast cancer. Cancer Res 1986;46:5406-8.

102. Freake HC, Abeyasekera G, Iwasaki J, et al. Measurement of 1,25-dihydroxyvitamin D3 receptors in breast cancer and their relationship to biochemical and clinical indices. Cancer Res 1984;44:1677-81.

103. Baer JT, Taper LJ, Gwazdauskas FG, et al. Diet, hormonal, and metabolic factors affecting bone mineral density in adolescent amenorrheic and eumenorrheic female runners. J Sports Med Phys Fitness 1992;32:51-8.

104. Kalkwarf HJ, Specker BL, Ho M. Effects of calcium supplementation on calcium homeostasis and bone turnover in lactating women. J Clin Endocrinol Metab 1999;84:464-70.

105. Fagan KM. Pharmacologic management of athletic amenorrhea. Clin Sports Med 1998;17:327-41 [review].

106. Al Faraj S, Al Mutairi K. Vitamin D deficiency and chronic low back pain in Saudi Arabia. Spine 2003;28:177-9.

107. Lotfi A, Abdel-Nasser AM, Hamdy A, et al. Hypovitaminosis D in female patients with chronic low back pain. Clin Rheumatol 2007;26:1895-901.

108. De Torrente de la Jara G, Pecoud A, Favrat B. Musculoskeletal pain in female asylum seekers and hypovitaminosis D3. BMJ 2004;329:156-7.

109. Leichtmann GA, Bengoa JM, Bolt MJG, Sitrin MD. Intestinal absorption of cholecalciferol and 25-hydrocycholecalciferol in patients with both Crohn's disease and intestinal resection. Am J Clin Nutr 1991;54:548-52.

110. Harris AD, Brown R, Heatley RV, et al. Vitamin D status in Crohn's disease: association with nutrition and disease activity. Gut 1985;26:1197-203.

111. Driscoll RH Jr, Meredith SC, Sitrin M, et al. Vitamin D deficiency and bone disease in patients with Crohn's disease. Gastroenterology 1982;83:1252-8.

112. Vogelsang H, Ferenci P, Resch H, et al. Prevention of bone mineral loss in patients with Crohn's disease by long-term oral vitamin D supplementation. Eur J Gastroenterol Hepatol 1995;7:609-14.

113. Jorgensen SP, Agnholt J, Glerup H, et al. Clinical trial: vitamin D3 treatment in Crohn's disease - a randomized double-blind placebo-controlled study. Aliment Pharmacol Ther 2010;32:377-83.

114. Yang L, Weaver V, Smith JP, et al. Therapeutic effect of vitamin D supplementation in a pilot study of Crohn's patients. Clin Transl Gastroenterol 2013;4:e33.

115. Connon JJ. Celiac disease. In: Shils ME, Olson JA, Shike M, eds. Modern Nutrition in Health and Disease, 8th ed. Philadelphia: Lea & Febiger, 1994, 1062.

116. Crofton RW, Glover SC, Ewen SWB, et al. Zinc absorption in celiac disease and dermatitis herpetiformis: a test of small intestinal function. Am J Clin Nutr 1983;38:706-12.

117. Solomons NW, Rosenberg IH, Sandstead HH. Zinc nutrition in celiac sprue. Am J Clin Nutr 1976;29:371-5.

118. Rude RK, Olerich M. Magnesium deficiency: possible role in osteoporosis associated with gluten-sensitive enteropathy. Osteoporos Int 1996;6:453-61.

119. Basha B, Rao S, Han ZH, Parfitt, AM. Osteomalacia due to vitamin D depletion: neglected consequence of intestinal malabsorption. Am J Med 2000;108(4):296-300.

120. Urashima M, Segawa T, Okazaki M, et al. Randomized trial of vitamin D supplementation to prevent seasonal influenza A in schoolchildren. Am J Clin Nutr 2010;91:1255-60.

121. Kerley CP, Hutchinson K, Cormican L, et al. Vitamin D3 for uncontrolled childhood asthma: A pilot study. Pediatr Allergy Immunol 2016;27:404–12.

122. Castro M, King TS, Kunselman SJ, et al. Effect of vitamin D3 on asthma treatment failures in adults with symptomatic asthma and lower vitamin D levels: the VIDA randomized clinical trial. JAMA 2014;311:2083–91.

123. Lasco A, Catalano A, Benvenga S. Improvement of primary dysmenorrhea caused by a single oral dose of vitamin D: results of a randomized, double-blind, placebo-controlled study. Arch Intern Med 2012;172:366-7.

124. Baer JT, Taper LJ, Gwazdauskas FG, et al. Diet, hormonal, and metabolic factors affecting bone mineral density in adolescent amenorrheic and eumenorrheic female runners. J Sports Med Phys Fitness 1992;32:51-8.

125. Kalkwarf HJ, Specker BL, Ho M. Effects of calcium supplementation on calcium homeostasis and bone turnover in lactating women. J Clin Endocrinol Metab 1999;84:464-70.

126. Fagan KM. Pharmacologic management of athletic amenorrhea. Clin Sports Med 1998;17:327-41 [review].

127. Crescioli C, Morelli A, Adorini L, et al. Human bladder as a novel target for vitamin D receptor ligands. J Clin Endocrinol Metab 2005;90:962-72.

128. Schröder A, Colli E, Maggi M, Andersson KE. Effects of vitamin D(3) analogue in a rat model of bladder outlet obstruction. BJU Int 2006;98:637-42.

129. 3] Badalian SS, Rosenbaum PF. Vitamin D and pelvic floor disorders in women: results from the National Health and Nutrition Examination Survey. Obstet Gynecol 2010;115:795-803.

130. Studzinski GP, Moore DC. Sunlight--can it prevent as well as cause cancer? Cancer Res 1995;55:4014-22 [review].

131. John EM, Koo J, Schwartz GG. Sun exposure and prostate cancer risk: evidence for a protective effect of early-life exposure. Cancer Epidemiol Biomarkers Prev 2007;16:1283-6.

132. Wali S, Shukr A, Boudal A, et al. The effect of vitamin D supplements on the severity of restless legs syndrome. Sleep Breath 2015;19:579–83.

133. Saad K, Abdel-Rahman AA, Elserogy YM, et al. Randomized controlled trial of vitamin D supplementation in children with autism spectrum disorder. J Child Psychol Psychiatry 2016 Nov 21 [Epub ahead of print].

134. Gaby, AR. Nutritional Medicine. Concord, NH: Fritz Perlberg Publishing, 2011.

135. Dawson-Hughes B, Harris SS, Krall EA, Dallal GE. Effect of calcium and vitamin D supplementation on bone density in men and women 65 years of age or older. N Engl J Med 1997;337:670-6.

136. Dawson-Hughes B. Calcium and vitamin D nutritional needs of elderly women. J Nutr 1996;126(4 Suppl):1165-7S.

137. Chapuy MC, Arlot ME, Duboeuf F, et al. Vitamin D3 and calcium to prevent hip fractures in the elderly women. N Engl J Med 1992;327:1637-42.

138. Dawson-Hughes B, Harris SS, Krall EA, et al. Rates of bone loss in postmenopausal women randomly assigned to one of two dosages of vitamin D. Am J Clin Nutr 1995;61:1140-5.

139. Glerup H, Mikkelsen K, Poulsen L, et al. Commonly recommended daily intake of vitamin D is not sufficient if sunlight exposure is limited. J Intern Med 2000;247:260-8.

140. Bischoff-Ferrari HA, Giovannucci E, Willett WC, et al. Estimation of optimal serum concentrations of 25-hydroxyvitamin D for multiple health outcomes. Am J Clin Nutr 2006;84:18-28.

141. Moreira-Pfrimer LDF, Pedrosa MAC, Teixeira L, Lazaretti-Castro M. Treatment of vitamin D deficiency increases lower limb muscle strength in institutionalized older people independently of regular physical activity: a randomized double-blind controlled trial. Ann Nutr Metab 2009;54:291-300.

142. Agarwal KS, Mughal MZ, Upadhyay P, et al. The impact of atmospheric pollution on vitamin D status of infants and toddlers in Delhi, India. Arch Dis Child 2002;87:111-3.

143. Manicourt DH, Devogelaer JP. Urban tropospheric ozone increases the prevalence of vitamin D deficiency among Belgian postmenopausal women with outdoor activities during summer. J Clin Endocrinol Metab 2008;93:3893-9.

144. Kyriakidou-Himonas M, Aloia JF, Yeh JK. Vitamin D supplementation in postmenopausal black women. J Clin Endocrinol Metab 1999;84:3988-90.

145. Basha B, Rao S, Han ZH, Parfitt, AM. Osteomalacia due to vitamin D depletion: neglected consequence of intestinal malabsorption. Am J Med 2000;108(4):296-300.

146. Yamashita H, Noguchi S, Takatsu K, et al. High prevalence of vitamin D deficiency in Japanese female patients with Graves' disease. Endocr J 2001;48(6):63-9.

147. Silverberg SL, Shane E, Dempster DW, Bilezikian JP. The effects of vitamin D insufficiency in patients with primary hyperparathyroidism. Am J Med 1999; 107:561-7.

148. Van Veldhuizen PJ, Taylor SA, Williamson S, Drees BM. Treatment of vitamin D deficiency in patients with metastatic prostate cancer may improve bone pain and muscle strength. J Urol 2000;163:187-90.

149. Chapuy MC, Preziosi P, Maamer M, et al. Prevalence of vitamin D insufficiency in an adult normal population. Osteoporos Int 1997;7:439-43.

150. Thomas MK, Lloyd-Jones DM, Thadhani RI, et al. Hypovitaminosis D in medical inpatients. N Engl J Med 1998;338:777-83.

151. Harris SS, Dawson-Hughes B, Perrone GA. Plasma 25-hydroxyvitamin D responses of younger and older men to three weeks of supplementation with 1800 IU/day of vitamin D. J Am Coll Nutr 1999;18:470-4.

152. Vieth R. Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety. Am J Clin Nutr 1999;69:842-56.

153. Heikkinen AM, Tuppurainen MT, Komulainen M, et al. Long-term vitamin D3 supplementation may have adverse effects on serum lipids during postmenopausal hormone replacement therapy. Eur J Endocrinol 1997;137:495-502.

154. Scragg R, Khaw KT, Murphy S. Effect of winter oral vitamin D3 supplementation on cardiovascular risk factors in elderly adults. Eur J Clin Nutr 1995;49:640-6.

Copyright © 2024 TraceGains, Inc. All rights reserved.

Learn more about TraceGains, the company.

The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2024.

Log In

You need to log into the site to use this feature

Create A Free Account To Use Medicine Chest

This feature requires registration. Sign up or log in to your free WellRx account to gain access to this and other tools to help make managing your medications and wellness easier.

Benefits Include:

Store & manage your medication list
Medication pricing updates
Import medication from your pharmacy
Medication information
Pill & refill reminders
Medication journal & mood log

Sign up to use Medicine Chest

Create A Free Account To Use this feature

This feature requires registration. Sign up or log in to your free WellRx account to gain access to this and other tools to help make managing your medications and wellness easier.

Benefits Include:

Store & manage your medication list
Medication pricing updates
Import medication from your pharmacy
Medication information
Pill & refill reminders
Medication journal & mood log

Sign up to use this feature

You will be redirected to your program in 5 seconds.

Hi there.

Our Terms and Conditions and Privacy Policy have recently been updated.

Learn More


I Accept

By declining you will be logged out of your account

;