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Dietary total antioxidant capacity is associated with diet and plasma antioxidant status in healthy young adults.
J Acad Nutr Diet. 2012 Oct; 112(10):1626-35.JA

Abstract

Dietary total antioxidant capacity (TAC), based on the cumulative antioxidant activities of all the antioxidants present in food, has been shown to be inversely associated with risks of chronic diseases. However, dietary TAC has not been validated for its relevance in a healthy young population or for reliability and predictability for antioxidant status. Our study aimed to validate TAC as a tool in assessing antioxidant intake and to investigate whether dietary TAC predicts plasma antioxidant status in a healthy young population. Sixty healthy, nonsmoking college students at the University of Connecticut ages 18 to 25 years were recruited. Thirty-day food records and two 12-hour fasting blood samples were collected for dietary and plasma antioxidant assessments. After adjustment for total energy intake, TAC from diet and supplement was positively correlated with intakes of carotenoids (P<0.01), beta carotene (P<0.05), β-cryptoxanthin (P<0.05), flavonoids (P<0.0001), isoflavones (P<0.01), flavan-3-ols (P<0.01), flavones (P<0.05), and flavonols (P<0.0001). Dietary TAC was an independent predictor of plasma TAC determined by vitamin C equivalent antioxidant capacity (P<0.01) and by ferric-reducing ability of plasma (P<0.0001), plasma glutathione peroxidase (P<0.01), red blood cell glutathione peroxidase (P<0.05), α-tocopherol (P<0.05), and lutein (P<0.05). Results were similar for TAC from diet sources only. The findings suggest that dietary TAC is a good predictor of dietary and plasma antioxidant status in this sample of young adult men and women.

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Authors+Show Affiliations

Wang Y
Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269-4017, USA.
Yang M
No affiliation info available
Lee SG
No affiliation info available
Davis CG
No affiliation info available
Koo SI
No affiliation info available
Chun OK
No affiliation info available

MeSH

AdolescentAdultAntioxidantsBiomarkersCarotenoidsChronic DiseaseCross-Sectional StudiesDietDiet, VegetarianDietary SupplementsFemaleFlavonoidsFood AnalysisFruitHumansMaleNutritional StatusOxidation-ReductionVegetablesYoung Adult

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

23017573

Citation

Wang, Ying, et al. "Dietary Total Antioxidant Capacity Is Associated With Diet and Plasma Antioxidant Status in Healthy Young Adults." Journal of the Academy of Nutrition and Dietetics, vol. 112, no. 10, 2012, pp. 1626-35.
Wang Y, Yang M, Lee SG, et al. Dietary total antioxidant capacity is associated with diet and plasma antioxidant status in healthy young adults. J Acad Nutr Diet. 2012;112(10):1626-35.
Wang, Y., Yang, M., Lee, S. G., Davis, C. G., Koo, S. I., & Chun, O. K. (2012). Dietary total antioxidant capacity is associated with diet and plasma antioxidant status in healthy young adults. Journal of the Academy of Nutrition and Dietetics, 112(10), 1626-35. https://doi.org/10.1016/j.jand.2012.06.007
Wang Y, et al. Dietary Total Antioxidant Capacity Is Associated With Diet and Plasma Antioxidant Status in Healthy Young Adults. J Acad Nutr Diet. 2012;112(10):1626-35. PubMed PMID: 23017573.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dietary total antioxidant capacity is associated with diet and plasma antioxidant status in healthy young adults. AU - Wang,Ying, AU - Yang,Meng, AU - Lee,Sang-Gil, AU - Davis,Catherine G, AU - Koo,Sung I, AU - Chun,Ock K, PY - 2011/11/11/received PY - 2012/05/17/accepted PY - 2012/9/29/entrez PY - 2012/9/29/pubmed PY - 2012/12/10/medline SP - 1626 EP - 35 JF - Journal of the Academy of Nutrition and Dietetics JO - J Acad Nutr Diet VL - 112 IS - 10 N2 - Dietary total antioxidant capacity (TAC), based on the cumulative antioxidant activities of all the antioxidants present in food, has been shown to be inversely associated with risks of chronic diseases. However, dietary TAC has not been validated for its relevance in a healthy young population or for reliability and predictability for antioxidant status. Our study aimed to validate TAC as a tool in assessing antioxidant intake and to investigate whether dietary TAC predicts plasma antioxidant status in a healthy young population. Sixty healthy, nonsmoking college students at the University of Connecticut ages 18 to 25 years were recruited. Thirty-day food records and two 12-hour fasting blood samples were collected for dietary and plasma antioxidant assessments. After adjustment for total energy intake, TAC from diet and supplement was positively correlated with intakes of carotenoids (P<0.01), beta carotene (P<0.05), β-cryptoxanthin (P<0.05), flavonoids (P<0.0001), isoflavones (P<0.01), flavan-3-ols (P<0.01), flavones (P<0.05), and flavonols (P<0.0001). Dietary TAC was an independent predictor of plasma TAC determined by vitamin C equivalent antioxidant capacity (P<0.01) and by ferric-reducing ability of plasma (P<0.0001), plasma glutathione peroxidase (P<0.01), red blood cell glutathione peroxidase (P<0.05), α-tocopherol (P<0.05), and lutein (P<0.05). Results were similar for TAC from diet sources only. The findings suggest that dietary TAC is a good predictor of dietary and plasma antioxidant status in this sample of young adult men and women. SN - 2212-2672 UR - https://www.unboundmedicine.com/medline/citation/23017573/Dietary_total_antioxidant_capacity_is_associated_with_diet_and_plasma_antioxidant_status_in_healthy_young_adults_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S2212-2672(12)00741-1 DB - PRIME DP - Unbound Medicine ER -