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Examination of vitamin intakes among US adults by dietary supplement use.
J Acad Nutr Diet 2012; 112(5):657-663.e4JA

Abstract

BACKGROUND

More than half of US adults use dietary supplements. Some reports suggest that supplement users have higher vitamin intakes from foods than nonusers, but this observation has not been examined using nationally representative survey data.

OBJECTIVE

The purpose of this analysis was to examine vitamin intakes from foods by supplement use and how dietary supplements contribute to meeting or exceeding the Dietary Reference Intakes for selected vitamins using data from the National Health and Nutrition Examination Survey among adults (aged ≥19 years) in 2003-2006 (n=8,860).

RESULTS

Among male users, mean intakes of folate and vitamins A, E, and K from food sources were significantly higher than among nonusers. Among women, mean intakes of folate and vitamins A, C, D, and E from foods were higher among users than nonusers. Total intakes (food and supplements) were higher for every vitamin we examined among users than the dietary vitamin intakes of nonusers. Supplement use helped lower the prevalence of intakes below the Estimated Average Requirement for every vitamin we examined, but for folic acid and vitamins A, B-6, and C, supplement use increased the likelihood of intakes above the Tolerable Upper Intake Level.

CONCLUSIONS

Supplement use was associated with higher mean intakes of some vitamins from foods among users than nonusers, but it was not associated with the prevalence of intakes less than the Estimated Average Requirement from foods. Those who do not use vitamin supplements had significantly higher prevalence of inadequate vitamin intakes; however, the use of supplements can contribute to excess intake for some vitamins.

Authors+Show Affiliations

Office of Dietary Supplements, National Institutes of Health, 6100 Executive Blvd, Bethesda, MD 20892-7517, USA. baileyr@mail.nih.govNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, N.I.H., Extramural
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

22709770

Citation

Bailey, Regan Lucas, et al. "Examination of Vitamin Intakes Among US Adults By Dietary Supplement Use." Journal of the Academy of Nutrition and Dietetics, vol. 112, no. 5, 2012, pp. 657-663.e4.
Bailey RL, Fulgoni VL, Keast DR, et al. Examination of vitamin intakes among US adults by dietary supplement use. J Acad Nutr Diet. 2012;112(5):657-663.e4.
Bailey, R. L., Fulgoni, V. L., Keast, D. R., & Dwyer, J. T. (2012). Examination of vitamin intakes among US adults by dietary supplement use. Journal of the Academy of Nutrition and Dietetics, 112(5), pp. 657-663.e4. doi:10.1016/j.jand.2012.01.026.
Bailey RL, et al. Examination of Vitamin Intakes Among US Adults By Dietary Supplement Use. J Acad Nutr Diet. 2012;112(5):657-663.e4. PubMed PMID: 22709770.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Examination of vitamin intakes among US adults by dietary supplement use. AU - Bailey,Regan Lucas, AU - Fulgoni,Victor L,3rd AU - Keast,Debra R, AU - Dwyer,Johanna T, Y1 - 2012/04/25/ PY - 2011/10/03/received PY - 2012/01/06/accepted PY - 2012/6/20/entrez PY - 2012/6/20/pubmed PY - 2012/8/28/medline SP - 657 EP - 663.e4 JF - Journal of the Academy of Nutrition and Dietetics JO - J Acad Nutr Diet VL - 112 IS - 5 N2 - BACKGROUND: More than half of US adults use dietary supplements. Some reports suggest that supplement users have higher vitamin intakes from foods than nonusers, but this observation has not been examined using nationally representative survey data. OBJECTIVE: The purpose of this analysis was to examine vitamin intakes from foods by supplement use and how dietary supplements contribute to meeting or exceeding the Dietary Reference Intakes for selected vitamins using data from the National Health and Nutrition Examination Survey among adults (aged ≥19 years) in 2003-2006 (n=8,860). RESULTS: Among male users, mean intakes of folate and vitamins A, E, and K from food sources were significantly higher than among nonusers. Among women, mean intakes of folate and vitamins A, C, D, and E from foods were higher among users than nonusers. Total intakes (food and supplements) were higher for every vitamin we examined among users than the dietary vitamin intakes of nonusers. Supplement use helped lower the prevalence of intakes below the Estimated Average Requirement for every vitamin we examined, but for folic acid and vitamins A, B-6, and C, supplement use increased the likelihood of intakes above the Tolerable Upper Intake Level. CONCLUSIONS: Supplement use was associated with higher mean intakes of some vitamins from foods among users than nonusers, but it was not associated with the prevalence of intakes less than the Estimated Average Requirement from foods. Those who do not use vitamin supplements had significantly higher prevalence of inadequate vitamin intakes; however, the use of supplements can contribute to excess intake for some vitamins. SN - 2212-2672 UR - https://www.unboundmedicine.com/medline/citation/22709770/Examination_of_vitamin_intakes_among_US_adults_by_dietary_supplement_use_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S2212-2672(12)00138-4 DB - PRIME DP - Unbound Medicine ER -