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Assessment of the effects of dietary supplement use (DSU) on Estimated Average Requirement (EAR) and Adequate Intake (AI) in older adults
Author(s) -
Bailey Regan Lucas,
Miller Paige E,
Hartman Terryl J,
Mitchell Diane C,
SmiciklasWright Helen
Publication year - 2008
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.22.1_supplement.461.1
Subject(s) - nutrient , medicine , environmental health , dietary reference intake , zoology , population , pantothenic acid , vitamin , vitamin b12 , gerontology , food science , toxicology , chemistry , biology , organic chemistry
Poor nutrient intakes are an adaptable risk factor associated with numerous public health outcomes. As older adults represent a vulnerable population for low nutrient intakes they may be ideal candidates for DSU. Usual nutrient intakes were estimated with and without DSU using the mean nutrient intake from 4, 24‐hour recalls in the Geisinger Rural Aging Study (114 m, 158 f; mean age 78.5 ± 6). We examined the impact of DSU on the proportion of our sample who met the EAR and AI for selected nutrients, as well as on the Mean Adequacy Ratio (MAR), an index of nutrient intake (range of 0–1). The nutrients used to calculate the MAR included calcium, folate, pantothenic acid, magnesium, zinc, potassium and Vitamins A, C, D, E, K, B6, and B12. The majority of the sample (74%) reported DSU. The MAR for our sample without accounting for DSU was 0.68 but increased to 0.82 with DSU. Using the EAR, the prevalence of inadequate intakes for nutrients was higher if DSU wasn't accounted for, and a similar trend was observed for those nutrients with an AI. Notably, only 1% of the sample met the AI for Vitamin D through diet alone; however, when DSU was factored in 68% were meeting the AI. Given the widespread prevalence of DSU in older adults and the large contribution of DSU to total nutrient intakes, it is imperative to account for DSU when estimating nutrient adequacies within groups. Supported in part by NIH R21AG023179‐01A1, USDA #58‐1950‐4‐401.