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Dietary supplement use within a multiethnic population as measured by a unique inventory method
Suzanne P Murphy1, Lynne R Wilkens, Kristine R Monroe
1Cancer Research Center of Hawaii, University of Hawaii, Honolulu, HI 96813, USA. Suzanne@crch.hawaii.edu
Journal of the American Dietetic Association
|June 28, 2011
Summary
Older adults frequently use multiple dietary supplements, making accurate intake assessment crucial. A unique inventory method quantified supplement use over one year, revealing substantial nutrient contributions from various products.
Area of Science:
- Nutritional Science
- Gerontology
- Public Health
Background:
- Dietary supplement use is prevalent but difficult to accurately quantify.
- Accurate measurement of nutrient intake from supplements is essential for health assessments.
Purpose of the Study:
- To quantify dietary supplement use and intake over one year in older adults.
- To evaluate a unique inventory method for measuring supplement consumption.
Main Methods:
- An observational study involving 397 older adults (average age 68).
- A novel inventory method tracking supplement purchases and pill counts every 3 months over one year.
- Data collected from participants in the Multiethnic Cohort in Hawaii and Los Angeles.
Main Results:
- The most common supplement was multivitamins/minerals (83% men, 73% women).
- Participants used a median of 7 (women) and 5.5 (men) different supplements annually.
- Non-vitamin/non-mineral supplements were commonly used, sometimes at high doses.
Conclusions:
- Older adults commonly use numerous supplements, leading to potentially substantial nutrient intakes.
- The inventory method shows promise for improving the quantification of dietary supplement use.
- Accurate quantification of supplement use is vital for assessing overall nutrient intake in older populations.
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