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Agenda

Wednesday | Thursday

Overall Conference Objectives

  • To evaluate available evidence on the efficacy and safety of vitamin D, considering the Agency for Healthcare Research and Quality (AHRQ) evidence-based review entitled Effectiveness and Safety of Vitamin D, other recent and current research, particularly new research and related research tools made available since the original 2003 Office of Dietary Supplements (ODS) Conference on Vitamin D and Health in the 21st Century: Bone and Beyond. In particular, this evaluation will focus on vitamin D metabolism and status, 25(OH)D levels and functional outcomes across the life cycle, the impact of vitamin D dietary intakes and de novo production on 25(OH)D levels, and the toxicity and adverse outcomes of vitamin D.
  • Identify gaps in knowledge on the efficacy and safety of vitamin D in general and across the life cycle.
  • Inform NIH and other Federal Agencies on research priorities in the area of vitamin D and health.
  • Disseminate the conference proceedings and executive summary to inform the broader nutrition community.

Wednesday, September 5, 2007

8:00 a.m.

Registration

8:30 a.m.–8:40 a.m.

Introduction
Mary Frances Picciano
Office of Dietary Supplements, NIH

Session 1:

Vitamin D Metabolism and Status
Moderator: Joan McGowan
National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH

8:40 a.m.–9:15 a.m.

Vitamin D Metabolism and Functions
Anthony Norman
University of California, Riverside

9:15 a.m.–9:25 a.m.

Questions and Answers

9:25 a.m.–9:45 a.m.

Assessment of Nutritional Status: Biomarkers and Nutritional Assessment
Lars Ovesen
Department of Gastroenterology, Slagelse Hospital

9:45 a.m.–9:55 a.m.

Questions and Answers

9:55 a.m.–10:15 a.m.

Vitamin D Across the Life Cycle
Ann Prentice
Medical Research Council Human Nutrition Center

10:15 a.m.–10:25 a.m.

Questions and Answers

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10:25 a.m.–10:50 a.m.

Break

10:50 a.m.–11:10 a.m.

Measuring 25(OH)D: Challenges and Needs
Bruce Hollis
Medical University of South Carolina 

11:10 a.m.–11:20 a.m.

Questions and Answers

11:20 a.m.–11:30 a.m.

Measuring 25(OH)D: Standard Reference Material
Karen Phinney
National Institute of Standards and Technology

11:30 a.m.–11:35 a.m.

Questions and Answers

11:35 a.m.–11:55 a.m.

Vitamin D Status
Anne Looker
National Center for Health Statistics

11:55 a.m.–12:05 p.m.

Questions and Answers

12:05 p.m.–12:50 p.m.

Session 1 Panel and Audience Discussion
Norman, Ovesen, Prentice, Hollis, Phinney, and Looker
Questions posed to panel and audience:

  • What research gaps need to be addressed to validate biomarkers and assessment standards of vitamin D status and their measurement in individuals and populations? 
  • Given current understanding of biomarkers and their relationship to functional outcomes for vitamin D, what interpretation can be given to population or study results that use serum 25(OH)D levels as the primary outcome or determinant of adequate vitamin D status?

12:50 p.m.–1:50 p.m.

Lunch on own

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1:50 p.m.–2:00 p.m.

Vitamin D and Cancer—Current Dilemmas and Future Needs: A Summary of the NCI Conference
Cindy Davis
National Cancer Institute, NIH

2:00 p.m.–2:05 p.m.

Questions and Answers

Session 2, Part 1:

25(OH)D and Functional Outcomes Across the Life Cycle
Moderator: Munro Peacock
Indiana University School of Medicine

2:05 p.m.–2:20 p.m.

Evidence-Based Review: Overview
Ann Cranney
University of Ottawa

2:20 p.m.–2:30 p.m.

Questions and Answers

2:30 p.m.–2:45 p.m.

Evidence-Based Review: Results—Question 1
Hope Weiler
McGill University

2:45 p.m.–2:55 p.m.

Questions and Answers

2:55 p.m.–3:15 p.m.

25(OH)D and Functional Outcomes in the Elderly
Bess Dawson-Hughes
Tufts University Human Nutrition Research Center on Aging

3:15 p.m.–3:25 p.m.

Questions and Answers

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3:25 p.m.–3:50 p.m.

Break

3:50p.m.–4:10 p.m.

25(OH)D and Functional Outcomes in Pregnancy and Lactation
Christopher Kovacs
Memorial University of Newfoundland, Health Sciences Center

4:10 p.m.–4:20 p.m.

Questions and Answers

4:20 p.m.–4:40 p.m.

25(OH)D and Functional Outcomes in the Fetus and Infant
Frank Greer
University of Wisconsin

4:40 p.m.–4:50 p.m.

Questions and Answers

4:50 p.m.–5:10 p.m.

25(OH)D and Functional Outcomes in Adolescents
Christel Lamberg-Allardt
University of Helsinki

5:10 p.m.–5:20 p.m.

Questions and Answers

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Thursday, September 6, 2007

Session 2, Part 2:

25(OH)D and Functional Outcomes Across the Life Cycle
Moderator: Irwin Rosenberg
Tufts University Human Nutrition Research Center on Aging

8:30 a.m.–8:50 a.m.

Interactions of 25(OH)D With Calcium and Functional Outcomes
Robert Heaney
Creighton University

8:50 a.m.–9:00 a.m.

Questions and Answers

9:00 a.m.–9:20 a.m.

African Americans, 25(OH)D, and Osteoporosis: A Paradox?
John Aloia
Winthrop University Hospital

9:20 a.m.–9:30 a.m.

Questions and Answers

9:30 a.m.–10:30 a.m.

Session 2 Panel and Audience Discussion
Cranney, Weiler, Dawson-Hughes, Kovacs, Greer, Lamberg-Allardt, Heaney, and Aloia
Questions posed to panel and audience:

  • What research gaps need to be addressed to answer the questions as to what is insufficient 25(OH)D across the life cycle and among ethnic groups?
  • How do age, race, physical, and physiological conditions (pregnancy, obesity, renal/liver disease) affect vitamin D, its assessment biomarkers, and sufficiency across the life cycle?

10:30 a.m.–10:55 a.m.

Break

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Session 3: 

Impact of Dietary Intake (Including Fortified Foods and Supplements) and Sun Exposure on 25(OH)D
Moderator: Cindy Davis
National Cancer Institute, NIH

10:55 a.m.–11:25 a.m.

Evidence-Based Review Results—Questions 2–4
Ann Cranney
University of Ottawa

11:25 a.m.–11:35 a.m.

Questions and Answers

11:35 a.m.–11:45 a.m.

Assessing Vitamin D Contents in Food and Supplements: Challenges and Needs
Joanne Holden
U.S. Department of Agriculture, Beltsville Human Nutrition Research Center

11:45 a.m.–11:50 a.m.

Questions and Answers

11:50 a.m.–12:00 a.m.

Analyzing Vitamin D in Food and Supplements: Methodological Challenges
James Harnly
U.S. Department of Agriculture, Beltsville Human Nutrition Research Center

12:00 a.m.–12:05 a.m.

Questions and Answers

12:05 a.m.–12:25 p.m.

Intakes of Vitamin D, 25(OH)D, and Sufficiency: State of Our Knowledge and Its Uncertainties
Elizabeth Yetley
Office of Dietary Supplements, NIH

12:25 p.m.–12:35 p.m.

Questions and Answers

12:35 p.m.–1:35 p.m.

Lunch on own

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1:35 p.m.–1:55 p.m.

Sun Exposure, 25(OH)D, and Sufficiency
Barbara Gilchrest
Boston University School of Medicine

1:55 p.m.–2:05 p.m.

Questions and Answers

Session 4: 

Toxicity and Adverse Outcomes
Moderator: Christine Taylor
Institute of Medicine, National Academy of Sciences

2:05 p.m.–2:15 p.m.

Evidence-Based Review Results—Question 5
Ann Cranney
University of Ottawa

2:15 p.m.–2:25 p.m.

Questions and Answers

2:25 p.m.–2:45 p.m.

Assessing Adverse Outcomes of Essential Nutrients: Theoretical and Evidence-Based Approaches
Daniel P. Hayes
New York City Department of Health and Mental Hygiene

2:45 p.m.–2:55 p.m

Questions and Answers

2:55 p.m.–3:15 p.m.

Break

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3:15 p.m.–3:35 p.m.

Potential Adverse Outcomes of Vitamin D
Reinhold Vieth
University of Toronto

3:35 p.m.–3:45 p.m.

Questions and Answers

3:45 p.m.–4:05 p.m.

Pharmacokinetics of Vitamin D Toxicity
Jim Riviere
North Carolina State University

4:05 p.m.–4:15 p.m.

Questions and Answers

4:15 p.m.–5:00 p.m.

Session 3 and 4 Panel and Audience Discussion
Cranney, Holden, Harnly, Yetley, Gilchrest, Hayes, Vieth, and Riviere
Questions posed to panel and audience:

  • What research gaps need to be addressed to understand the dietary intake, including that from fortified foods and supplements, the endogenous production of vitamin D, and the adverse outcomes of high intakes across life cycle, in ethnic groups and in various physiological or relevant disease states (such as kidney or liver disease)?

5:00 p.m.–5:15 p.m.

Conclusions
Patsy Brannon
Office of Dietary Supplements, NIH/Cornell University

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