Recommendations Summary
CKD: Micronutrients: Vitamin D Supplementation (2020)
Click here to see the explanation of recommendation ratings (Strong, Fair, Weak, Consensus, Insufficient Evidence) and labels (Imperative or Conditional). To see more detail on the evidence from which the following recommendations were drawn, use the hyperlinks in the Supporting Evidence Section below.
-
Recommendation(s)
CKD: Vitamin D Supplementation for Vitamin D Deficiency and Insufficiency, CKD 1-5D
In adults with CKD 1-5D (2C), we suggest prescribing Vitamin D supplementation in the form of cholecalciferol or ergocalciferol to correct 25(OH)D deficiency/insufficiency.
Rating: Weak
ConditionalCKD: Vitamin D Supplementation with Proteinuria
In adults with CKD 1-5 with nephrotic-range proteinuria, it is reasonable to consider supplementation of cholecalciferol, ergocalciferol or other safe and effective 25(OH)D precursors (OPINION).
Rating: Consensus
ConditionalCKD: Vitamin D Supplementation for Vitamin D Deficiency and Insufficiency, CKD Post-Transplant
In adults with CKD posttransplantation, we suggest prescribing Vitamin D supplementation in the form of cholecalciferol or ergocalciferol to correct 25(OH)D deficiency/insufficiency (OPINION).
Rating: Consensus
Conditional-
Risks/Harms of Implementing This Recommendation
There is no recommendation of safe dose of cholecalciferol or ergocalciferol supplementation to prevent for toxicity or adverse effects such as hypercalcemia or hyperphosphatemia in CKD.
-
Conditions of Application
Special Discussions
There are potential benefits of vitamin D supplementation (cholecalciferol or ergocalciferol) in CKD. A systematic review with meta-analysis of observational and randomized studies showed a significant decline in PTH levels with cholecalciferol or ergocalciferol supplementation in patients who are non-dialyzed, on hemodialysis or peritoneal dialysis, and renal transplant recipients (Kandula et al 2011) However, whether such improvements translate into clinically significant outcomes is yet to be determined.Cross-sectional analysis of Third National Health and Nutrition Examination Survey (NHANES III) showed progressively higher prevalence of albuminuria with decreasing 25(OH)D levels (de Boer et al 2007). In a prospective cohort study vitamin D deficiency was associated with a higher incidence of albuminuria (Damasiewicz et al 2013). There are limited randomized clinical trials investigating the effect of cholecalciferol or calcifediol on proteinuria in CKD and the results are not clear with both positive and null results (Susantitaphong et al 2017, Levin et al 2017).
Implementation Considerations
- The optimal serum 25(OH)D concentration for patients with CKD and the concentration at which patients with CKD are considered deficient/insufficient is not well defined but is generally considered to be the same as in the general population, although there is no absolute consensus about the definition of vitamin D sufficiency. For most experts, vitamin D insufficiency is defined as a serum 25(OH)D level between 20–29 ng/mL, deficiency is considered as 25(OH)D levels of less than 20 ng/mL and sufficiency serum 25(OH)D equal or greater than 30 ng/mL (Holick et al 2011).
- Both the Kidney Disease Outcomes Quality Initiative (KDOQI) and Kidney Disease Improving Global Outcomes (KDIGO) experts recommend checking and supplementing low serum 25(OH)D levels in CKD and dialysis patients. In the most recent update of the KDIGO guidelines on bone mineral disorder, it is suggested based on low quality evidence that patients with CKD stage 1–5D have 25(OH)D levels measured, and repeated testing should be individualized according to baseline values and interventions. However, there was no clear suggestion on how frequently 25(OH)D levels should be reviewed.
- With respect to vitamin D supplementation, current guidelines suggest that patients with CKD stages 1–5D and vitamin D insufficiency/deficiency should receive supplementation using the same strategies recommended for the general population. However, even for the general population, the optimal dosage of supplementation varies among the main guidelines. It has been recommended 1000–2000 IU/d of cholecalciferol for vitamin D repletion for the general population. However, KDOQI acknowledges that patients with CKD may require a more aggressive therapeutic plan.
- There is also a debate regarding which form of vitamin D should be used, ergocalciferol or cholecalciferol. In the general population there appears to be some advantage of using cholecalciferol over ergocalciferol. PMID 22552031 Since in CKD there is no clear evidence about the superiority of chocalciferol, clinicians should use the form commercially available in the context of their clinical practice.
- The tolerable upper intake levels (UL) proposed by the Institute of Medicine (IOM) for the general population is 4, 000 IU/day. (IOM, Dietary Reference Intakes for Calcium and Vitamin D, 2011) There is no recommendation of safe dose of cholecalciferol or ergocalciferol supplementation to prevent for toxicity or adverse effects such as hypercalcemia or hyperphosphatemia in CKD. However, periodically measurement of serum calcium and phosphorus should be considered especially for patients who are on calcium-containing phosphate binders and/or on vitamin D active analogs.
-
Potential Costs Associated with Application
The cost of nutrition supplements should be considered before recommending to a patient.
-
Recommendation Narrative
Vitamin D2 (ergocalciferol) and Vitamin D3 (cholecalciferol) are recognized as a pro-hormones and comprise a group of fat-soluble secosteroids. A unique aspect of vitamin D as a nutrient is that it can be synthesized by the human body through the action of sunlight. These dual sources of vitamin D (diet and sunlight) make it challenging to develop dietary reference intake values (IOM, Dietary Reference Intakes for Calcium and Vitamin D, 2011). The classic actions of vitamin D are the regulation of calcium and phosphorus homeostasis contributing to bone health. More recently, there has been a growing interest in the potential pleiotropic actions of vitamin D on immune, cardiovascular and neurological systems and on antineoplastic activity since extra-renal organs possess the enzymatic capacity to convert 25 (OH)D to 1, 25(OH)2D (Holick 2007)
Insufficiency/deficiency of vitamin D, assessed by serum concentration of calcidiol [25(OH)D], has been found to be common in the general population and even more prevalent in patients with CKD/ESRD (LaClair et al 2005, Wolf et al 2007, Taskapan et al 2006).
A number of factors or conditions are implicated in suboptimal vitamin D status in patients with CKD, including aging, diabetes mellitus, obesity, reduced sun exposure, loss of urinary/dialysate vitamin D binding protein (DBP), impaired tubular 25(OH) reabsorption and dietary restrictions (Cuppari et al 2008, Caravaca-Fontan et al 2016, Takemoto et al 2003, Barreto Silva et al 2017, Caravaco-fontan et al 2016). Considering the elevated prevalence of vitamin D deficiency/insufficiency in CKD/ESRD and the potential benefits of restoring the vitamin D status the K/DOQI and KDIGO Clinical Practice Guidelines for CKD-MBD have proposed ergocalciferol or cholecalciferol supplementation.
Due to the complex nature of vitamin D, the present guideline is focused on the effect of vitamin D supplementation, in the forms of cholecalciferol and ergocalciferol, on vitamin D insufficiency/deficiency in patients with CKD and not on outcomes related to CKD-MBD or other clinical disturbances. Supplementation of prehormone and activated forms of vitamin D, calcidiol and calcitriol, were not included in this guideline.
Vitamin D Levels and Deficiency
Despite differences in dosing regimens and vitamin D status at baseline, supplementation was effective in increasing 25(OH)D serum concentration in 14 RCTs, including in the form of ergocalciferol (Bhan et al and Miskulin et al) and cholecalciferol (Alvarez et al 2012 and 2013, Armas et al 2012, Chandra et al 2008, Hewitt et al 2013, Marckmann et al 2012, Meireles et al 2016, Massart et al 2014, Seibert et al 2013, Delanaye et al 2013, Mager et al 2016 and Tokmak et al 2008). This effect was demonstrated in HD patients (8 studies), HD and PD patients combined (1 study), stages 1-4 CKD patients (4 studies) and in 1 study with any CKD participants. Five studies reported that ergocalciferol using doses 50, 000 IU/week and dose dependent on status (Bhan and Miskulin) and cholecalciferol in doses ranging from 25, 000-50, 000 IU/week (Massart et al, Alvarez et al and Delanaye et al) improved vitamin D status. There were significant effects noted after three months of supplementation. However, there was no difference in vitamin D deficiency status between non-dialyzed groups receiving two different dosing regimens (Mager et al).A meta-analysis was conducted to determine odds of vitamin D sufficiency according to vitamin D supplementation, which included Bhan, et al. (each group compared to the placebo group), Delanaye et al, Massart et al, and Alvarez et al 2012. Participants that were supplemented with vitamin D had an OR (95% CI) of 9.31 (3.38, 24.7) (p<0.001) of being vitamin D sufficient (defined as either >30 or 32 ng/mL), though there was moderate heterogeneity in the data (I2=51.84; p=0.08). Additionally, data from eight studies were pooled to determine mean difference (95% CI) in vitamin D levels according to vitamin D supplementation. There was a mean increase of 21.06 (17.46, 24.66) ng/mL in the vitamin D supplemented groups compared to the placebo groups, but heterogeneity was moderate (I2=67.3%; p=0.003), so results should be interpreted with caution.
Calcium and Phosphorus Levels
In adults with chronic kidney disease, twelve studies examined the effect of vitamin D intake on biomarkers and/or health outcomes (Alvarez et al 2012, Armas et al 2012, Bhan et al 2015, Chandra et al 2008, Dalanaye et al 2013, Marckmann et al 2012, Massart et al 2014, Meireles et al 2016, Miskulin et al 2016 and Seibert et al 2013, Khajehdehi et al 2000 and Mager et al 2016). Moderate quality evidence demonstrated no effect of vitamin D supplementation on calcium or phosphorus levels.In predominantly vitamin D deficient participants, there was no effect of ergocalciferol supplementation on effect of calcium levels (Bhan et al and Miskulin et al) in doses of 50, 000 IU/week or /month or in individualized doses. The effect of cholecalciferol on calcium levels was unclear with seven studies finding no effect on calcium levels and three studies determining supplementation increased calcium levels. In Massart et al., there was no effect of 25, 000 IU weekly cholecalciferol on proportion of HD participants reaching target levels at 3 months. There was no clear pattern of effect according to participant population, deficiency status or vitamin D dosage. In pooled analysis of four studies in which data could be combined (Delanaye et al 2013, Miskulin 2016, Khajehdehi 2000, Seibert et al 2013), there was no effect of vitamin D supplementation on calcium levels [MD (95% CI): 0.07 (-0.18, 0.31) mg/dL].
Vitamin D supplementation had no effect on phosphorus levels with ergocalciferol supplementation (2 studies with doses of 50, 000 IU/week or /month or in individualized doses) or cholecalciferol doses ranging from 50, 0000 IU/day to 50, 000 IU/month (10 studies). In pooled analysis of five RCTs (Delanaye et al 2013, Khajehdehi et al 2000, Miskulin et al 2016, Seibert et al 2013, Meireles et al 2016), there was no effect of vitamin D supplementation on phosphorus levels [MD (95% CI): -0.15 (-0.44, 0.15) (mg/dL)].
-
Recommendation Strength Rationale
The evidence supporting the recommendations for vitamin D supplementation are based on Grade III /Grade C evidence as well as Consensus/expert opinion.
-
Minority Opinions
Consensus reached.
-
Risks/Harms of Implementing This Recommendation
-
Supporting Evidence
The recommendations were created from the evidence analysis on the following questions. To see detail of the evidence analysis, click the blue hyperlinks below (recommendations rated consensus will not have supporting evidence linked).
What is the effect of vitamin D supplementation on vitamin D status and vitamin 25(OH)D levels in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on mortality in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on quality of life in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on hospitalizations in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on lipid profile in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on blood glucose parameters in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on arterial calcification in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on blood pressure in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on eGFR in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on creatinine levels in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on calcium and phosphorus levels in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on magnesium levels in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on sodium levels in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on vitamin D status and vitamin 25(OH)D levels in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on inflammatory marker levels in adults with CKD 1-5D and post-transplant?
What is the effect of vitamin D supplementation on nutritional status indicators in adults with CKD 1-5D and post-transplant?-
References
Alvarez J, Law J, Coakley K, Zughaier S, Hao L, Shahid Salles K, Wasse H, Gutiérrez O, Ziegler T, Tangpricha V. High-dose cholecalciferol reduces parathyroid hormone in patients with early chronic kidney disease: a pilot, randomized, double-blind, placebo-controlled trial. The American Journal of Clinical Nutrition 2012; 96:672-9
Alvarez J, Zughaier S, Law J, Hao L, Wasse H, Ziegler T, Tangpricha V. Effects of high-dose cholecalciferol on serum markers of inflammation and immunity in patients with early chronic kidney disease. European Journal of Clinical Nutrition 2013; 67:264-9
Armas L, Andukuri R, Barger-Lux J, Heaney R, Lund R. 25-Hydroxyvitamin D response to cholecalciferol supplementation in hemodialysis. Clinical Jof the American Society of Nephrology 2012; 7:1428-34
Bhan I, Dobens D, Tamez H, Deferio J, Li Y, Warren H, Ankers E, Wenger J, Tucker J, Trottier C, Pathan F, Kalim S, Nigwekar S, Thadhani R. Nutritional vitamin D supplementation in dialysis: a randomized trial. Clinical Journal of the American Society of Nephrology 2015; 10:611-9
Chandra P, Binongo J, Ziegler T, Schlanger L, Wang W, Someren J, Tangpricha V. Cholecalciferol (vitamin D3) therapy and vitamin D insufficiency in patients with chronic kidney disease: a randomized controlled pilot study. Endocrine Practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists 2008; 14:10-7
Delanaye P, Weekers L, Warling X, Moonen M, Smelten N, Médart L, Krzesinski J, Cavalier E. Cholecalciferol in haemodialysis patients: a randomized, double-blind, proof-of-concept and safety study. Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association 2013; 28:1779-86
Hewitt N, O'Connor A, O'Shaughnessy D, Elder G. Effects of cholecalciferol on functional, biochemical, vascular, and quality of life outcomes in hemodialysis patients. Clinical Journal of the American Society of Nephrology 2013; 8:1143-9
Mager DR, Jackson ST, Hoffmann MR, J indal K, Senior PA. Vitamin D3 supplementation, bone health and quality of life in adults with diabetes and chronic kidney disease: Results of an open label randomized clinical trial. Clinical Nutrition 2016; 36:686-96
Marckmann P, Agerskov H, Thineshkumar S, Bladbjerg E, Sidelmann J, Jespersen J, Nybo M, Rasmussen L, Hansen D, Scholze A. Randomized controlled trial of cholecalciferol supplementation in chronic kidney disease patients with hypovitaminosis D. Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association 2012; 27:3523-31
Massart A, Debelle F, Racapé J, Gervy C, Husson C, Dhaene M, Wissing K, Nortier J. Biochemical parameters after cholecalciferol repletion in hemodialysis: results From the VitaDial randomized trial. American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation 2014; 64:696-705
Meireles M, Kamimura M, Dalboni M, Giffoni de Carvalho J ,Aoike D, Cuppari L. Effect of cholecalciferol on vitamin D-regulatory proteins in monocytes and on inflammatory markers in dialysis patients: A randomized controlled trial. Clinical Nutrition (Edinburgh, Scotland) 2016; 35:1251-1258
Miskulin D, Majchrzak K, Tighiouart H, Muther R, Kapoian T, Johnson D, Weiner D. Ergocalciferol Supplementation in Hemodialysis Patients With Vitamin D Deficiency: A Randomized Clinical Trial. Journal of the American Society of Nephrology 2016; 27:1801-10
Seibert E, Heine G, Ulrich C, Seiler S, Köhler H, Girndt M. Influence of cholecalciferol supplementation in hemodialysis patients on monocyte subsets: a randomized, double-blind, placebo-controlled clinical trial. Nephron. Clinical Practice 2013; 123:209-19
Tokmak F, Quack I, Schieren G, Sellin L, Rattensperger D, Holland-Letz T, Weiner S, Rump L. High-dose cholecalciferol to correct vitamin D deficiency in haemodialysis patients. Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association 2008; 23:4016-20
Khajehdehi P. Effect of vitamins on the lipid profile of patients on regular hemodialysis. Scandinavian Journal of Urology and Nephrology 2000; 34:62-6 -
References not graded in Academy of Nutrition and Dietetics Evidence Analysis Process
Barreto Silva MI, Cavalieri VV, Lemos CC, Klein MR, Bregman R. Body adiposity predictors of vitamin D status in nondialyzed patients with chronic kidney disease: A cross-sectional analysis in a tropical climate city. Nutrit. 2017;33:240-7. PMID: 27692990
Caravaca-Fontán F, Gonzales-Candia B, Luna E, Caravaca F. Relative importance of the determinants of serum levels of 25-hydroxy vitamin D in patients with chronic kidney disease. Nefrologia. 2016;36(5):510-6. PMID: 27378232
Cuppari L, Carvalho AB, Draibe SA. Vitamin D status of chronic kidney disease patients living in a sunny country. J Ren Nutr. 2008;18(5):408-14. PMID: 18721735
Damasiewicz MJ, Magliano DJ, Daly RM, Gagnon C, Lu ZX, Sikaris KA, Ebeling PR, Chadban SJ, Atkins RC, Kerr PG, Shaw JE, Polkinghorne KR. Serum 25-hydroxyvitamin D deficiency and the 5-year incidence of CKD. Am J Kidney Dis. 2013;62(1):58-66. PMID: 23623574
de Boer IH, Ioannou GN, Kestenbaum B, Brunzell JD, Weiss NS. 25-Hydroxyvitamin D levels and albuminuria in the Third National Health and Nutrition Examination Survey (NHANES III). Am J Kidney Dis. 2007;50(1):69-77. PMID: 17591526
Holick MF. Vitamin D deficiency. N Engl J Med. 2007;357(3):266-81
Holick MF, Binkley NC, Bischoff-Ferrari HA, Gordon CM, Hanley DA, Heaney RP, Murad MH, Weaver CM; Endocrine Society. Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2011;96(7):1911-30. PMID: 21646368
Institute of Medicine (US) Committee to Review Dietary Reference Intakes for Vitamin D and Calcium; Ross AC, Taylor CL, Yaktine AL, Del Valle HB, editors. Dietary Reference Intakes for Calcium and Vitamin D. Washington (DC): National Academies Press (US); 2011.
Kandula P, Dobre M, Schold JD, Schreiber MJ Jr, Mehrotra R, Navaneethan SD. Vitamin D supplementation in chronic kidney disease: a systematic review and meta-analysis of observational studies and randomized controlled trials. Clin J Am Soc Nephrol. 2011; 6(1):50-62. PMID: 20876671.
Kidney Disease: Improving Global Outcomes (KDIGO) CKD-MBD Update Work Group. KDIGO 2017 Clinical Practice Guideline Update for the Diagnosis, Evaluation, Prevention, and Treatment of Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD). Kidney Int Suppl (2011). 2017;7(1):1-59.
KDOQI: Evaluation and Treatment of Chronic Kidney Disease-Mineral and Bone Disorder. Avalaible at https://www.kidney.org/sites/default/files/02-10-390B_LBA_KDOQI_BoneGuide.pdf. Accessed May 23, 2019.
LaClair RE, Hellman RN, Karp SL, Kraus M, Ofner S, Li Q, Graves KL, Moe SM. Prevalence of calcidiol deficiency in CKD: a cross-sectional study across latitudes in the United States. Am J Kidney Dis. 2005;45(6):1026-33. PMID: 15957131
Levin A, Tang M, Perry T, Zalunardo N, Beaulieu M, Dubland JA, Zerr K, Djurdjev O. Randomized Controlled Trial for the Effect of Vitamin D Supplementation on Vascular Stiffness in CKD. Clin J Am Soc Nephrol. 2017;12(9):1447-60. PMID: 28550081
Susantitaphong P, Nakwan S, Peerapornratana S, Tiranathanagul K, Katavetin P, Srisawat N, Praditpornsilpa K, Eiam-Ong S. A double-blind, randomized, placebo-controlled trial of combined calcitriol and ergocalciferol versus ergocalciferol alone in chronic kidney disease with proteinuria. BMC Nephrol. 2017;18(1):19. PMID: 28088187
Taskapan H, Ersoy FF, Passadakis PS, Tam P, Memmos DE, Katopodis KP, Ozener C, Akcicek F, Camsari T, Ates K, Ataman R, Vlachojannis JG, Dombros NA, Utas C, Akpolat T, Bozfakioglu S, Wu G, Karayaylali I, Arinsoy T, Stathakis CP, Yavuz M, Tsakiris DJ, Dimitriades AD, Yilmaz ME, Gültekin M, Oreopoulos DG. Severe vitamin D deficiency in chronic renal failure patients on peritoneal dialysis. Clin Nephrol. 2006;66(4):247-55. PMID: 17063991
Takemoto F, Shinki T, Yokoyama K, Inokami T, Hara S, Yamada A, Kurokawa K, Uchida S. Gene expression of vitamin D hydroxylase and megalin in the remnant kidney of nephrectomized rats. Kidney Int. 2003;64(2):414-20. PMID: 12846736
Wolf M, Shah A, Gutierrez O, Ankers E, Monroy M, Tamez H, Steele D, Chang Y, Camargo CA Jr, Tonelli M, Thadhani R. Vitamin D levels and early mortality among incident hemodialysis patients. Kidney Int. 2007;72(8):1004-13. PMID: 17687259
-
References