Evaluation of Calcium, Vitamin D, Magnesium, and Zinc Absorption in Children
2 other identifiers
interventional
60
1 country
1
Brief Summary
The goal of our research is to provide data to enhance the development of nutritional guidelines, especially as related to mineral nutrition, in children. Using human experimentation, we are studying methods of delivering the key minerals of calcium, zinc and iron in the diet so as to optimize health outcomes. We will conduct a controlled trial of vitamin D supplementation to assess the effects of vitamin D status on calcium absorption in small children. We will evaluate the effects of differing intakes of zinc on zinc and copper absorption. These studies will utilize stable isotope techniques so as to provide accurate, practically applicable information which may be obtained from the study populations in a safe manner. These data will have global application and provide a strong basis for evidence-based nutritional recommendations to be developed. Objective #1: To evaluate the effects of supplemental vitamin D in enhancing calcium absorption in healthy children 4 to 8 yrs of age. Objective #2: Assess the absorption of magnesium and zinc in healthy children 4 to 8 yrs of age.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Mar 2009
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 1, 2009
CompletedFirst Submitted
Initial submission to the registry
March 24, 2009
CompletedFirst Posted
Study publicly available on registry
March 25, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2011
CompletedNovember 2, 2011
November 1, 2011
2.4 years
March 24, 2009
November 1, 2011
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
To evaluate the effects of supplemental vitamin D in enhancing calcium absorption in healthy children 4 to 8 yrs of age.
End of the study
Secondary Outcomes (1)
Assess the absorption of magnesium and zinc in healthy children 4 to 8 yrs of age.
End of the study
Study Arms (2)
Vitamin D
ACTIVE COMPARATORSubjects will be provided supplemental vitamin D3 (1000 IU), given once daily as a softgel or liquid. Subjects will be instructed to take the supplement daily for 8 weeks.
Placebo
PLACEBO COMPARATORSubjects will be provided a placebo, given once daily as a softgel or liquid. Subjects will be instructed to take the supplement daily for 8 weeks.
Interventions
Subjects will be provided supplemental vitamin D3 (1000 IU) or placebo, given once daily (based on the stratification noted above). Vitamin D/placebo will be provided using a softgel or liquid. Subjects will be instructed to take the supplement daily for 8 weeks.
Eligibility Criteria
You may qualify if:
- Delivery at \> or = 35.0 weeks gestation with birth weight \> or = 2.5 kg
- BMI: 10th - 90th percentile for age and gender
- Ages 4.0 to 8.9 years
- Ethnic distribution of greater Houston area
- Usual calcium intake 600-1200 mg/d based on two 24-hour dietary recalls by phone
- Any regularly taken (daily) vitamins and minerals must be stopped at least 1 month before starting the study
You may not qualify if:
- History of any chronic illness.
- Regularly taken (daily) medications (except seasonal allergies).
- Avoidance of dairy products or meat in the diet.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Baylor College of Medicine / Texas Children's Hospital
Houston, Texas, 77030, United States
Related Publications (36)
Abrams SA, Griffin IJ, Hawthorne KM, Liang L, Gunn SK, Darlington G, Ellis KJ. A combination of prebiotic short- and long-chain inulin-type fructans enhances calcium absorption and bone mineralization in young adolescents. Am J Clin Nutr. 2005 Aug;82(2):471-6. doi: 10.1093/ajcn.82.2.471.
PMID: 16087995BACKGROUNDAbrams SA, Hawthorne KM, Aliu O, Hicks PD, Chen Z, Griffin IJ. An inulin-type fructan enhances calcium absorption primarily via an effect on colonic absorption in humans. J Nutr. 2007 Oct;137(10):2208-12. doi: 10.1093/jn/137.10.2208.
PMID: 17884999BACKGROUNDAmes SK, Gorham BM, Abrams SA. Effects of high compared with low calcium intake on calcium absorption and incorporation of iron by red blood cells in small children. Am J Clin Nutr. 1999 Jul;70(1):44-8. doi: 10.1093/ajcn/70.1.44.
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PMID: 18156197BACKGROUNDDavidsson L, Ziegler EE, Kastenmayer P, Hurrell RF. Erythrocyte incorporation of iron by infants: iron bioavailability from a low-iron infant formula and an evaluation of the usefulness of correcting erythrocyte incorporation values, using a reference dose or plasma ferritin concentrations. Br J Nutr. 2000 Dec;84(6):847-53.
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PMID: 15184215BACKGROUNDGriffin IJ, Davila PM, Abrams SA. Non-digestible oligosaccharides and calcium absorption in girls with adequate calcium intakes. Br J Nutr. 2002 May;87 Suppl 2:S187-91. doi: 10.1079/BJNBJN/2002536.
PMID: 12088517BACKGROUNDGriffin IJ, Lynch MF, Hawthorne KM, Chen Z, Hamzo M, Abrams SA. Magnesium retention in 12 to 48 month-old children. J Am Coll Nutr. 2008 Apr;27(2):349-55. doi: 10.1080/07315724.2008.10719711.
PMID: 18689570BACKGROUNDGriffin IJ, Lynch MF, Hawthorne KM, Chen Z, Hamzo MG, Abrams SA. Zinc homeostasis in 1-4 year olds consuming diets typical of US children. Br J Nutr. 2007 Aug;98(2):358-63. doi: 10.1017/S0007114507708796. Epub 2007 Apr 26.
PMID: 17459190BACKGROUNDGunshin H, Allerson CR, Polycarpou-Schwarz M, Rofts A, Rogers JT, Kishi F, Hentze MW, Rouault TA, Andrews NC, Hediger MA. Iron-dependent regulation of the divalent metal ion transporter. FEBS Lett. 2001 Dec 7;509(2):309-16. doi: 10.1016/s0014-5793(01)03189-1.
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PMID: 3034044BACKGROUNDHeaney RP, Dowell MS, Hale CA, Bendich A. Calcium absorption varies within the reference range for serum 25-hydroxyvitamin D. J Am Coll Nutr. 2003 Apr;22(2):142-6. doi: 10.1080/07315724.2003.10719287.
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PMID: 1603140BACKGROUNDLynch MF, Griffin IJ, Hawthorne KM, Chen Z, Hamzo M, Abrams SA. Calcium balance in 1-4-y-old children. Am J Clin Nutr. 2007 Mar;85(3):750-4. doi: 10.1093/ajcn/85.3.750.
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PMID: 15841093BACKGROUNDRajakumar K, Fernstrom JD, Holick MF, Janosky JE, Greenspan SL. Vitamin D status and response to Vitamin D(3) in obese vs. non-obese African American children. Obesity (Silver Spring). 2008 Jan;16(1):90-5. doi: 10.1038/oby.2007.23.
PMID: 18223618BACKGROUNDThane CW, Bates CJ, Prentice A. Risk factors for low iron intake and poor iron status in a national sample of British young people aged 4-18 years. Public Health Nutr. 2003 Aug;6(5):485-96. doi: 10.1079/PHN2002455.
PMID: 12943565BACKGROUNDVieth R, Bischoff-Ferrari H, Boucher BJ, Dawson-Hughes B, Garland CF, Heaney RP, Holick MF, Hollis BW, Lamberg-Allardt C, McGrath JJ, Norman AW, Scragg R, Whiting SJ, Willett WC, Zittermann A. The urgent need to recommend an intake of vitamin D that is effective. Am J Clin Nutr. 2007 Mar;85(3):649-50. doi: 10.1093/ajcn/85.3.649. No abstract available.
PMID: 17344484BACKGROUNDWalczyk T, Davidsson L, Rossander-Hulthen L, Hallberg L, Hurrell RF. No enhancing effect of vitamin A on iron absorption in humans. Am J Clin Nutr. 2003 Jan;77(1):144-9. doi: 10.1093/ajcn/77.1.144.
PMID: 12499334BACKGROUNDWessling-Resnick M. Iron transport. Annu Rev Nutr. 2000;20:129-51. doi: 10.1146/annurev.nutr.20.1.129.
PMID: 10940329BACKGROUNDZoller H, Theurl I, Koch R, Kaser A, Weiss G. Mechanisms of iron mediated regulation of the duodenal iron transporters divalent metal transporter 1 and ferroportin 1. Blood Cells Mol Dis. 2002 Nov-Dec;29(3):488-97. doi: 10.1006/bcmd.2002.0587.
PMID: 12547239BACKGROUNDHuey SL, Acharya N, Silver A, Sheni R, Yu EA, Pena-Rosas JP, Mehta S. Effects of oral vitamin D supplementation on linear growth and other health outcomes among children under five years of age. Cochrane Database Syst Rev. 2020 Dec 8;12(12):CD012875. doi: 10.1002/14651858.CD012875.pub2.
PMID: 33305842DERIVEDCummings SR, Eastell R. A History of Pivotal Advances in Clinical Research into Bone and Mineral Diseases. J Bone Miner Res. 2018 Jan;33(1):5-12. doi: 10.1002/jbmr.3353. Epub 2018 Jan 12. No abstract available.
PMID: 29329487DERIVEDAbrams SA, Hawthorne KM, Chen Z. Supplementation with 1000 IU vitamin D/d leads to parathyroid hormone suppression, but not increased fractional calcium absorption, in 4-8-y-old children: a double-blind randomized controlled trial. Am J Clin Nutr. 2013 Jan;97(1):217-23. doi: 10.3945/ajcn.112.046102. Epub 2012 Nov 14.
PMID: 23151536DERIVED
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Steve Abrams, MD
Baylor College of Medicine
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
March 24, 2009
First Posted
March 25, 2009
Study Start
March 1, 2009
Primary Completion
August 1, 2011
Study Completion
October 1, 2011
Last Updated
November 2, 2011
Record last verified: 2011-11