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Plasma micronutrient status is improved after a 3-month dietary intervention with 5 daily portions of fruits and vegetables: implications for optimal antioxidant levels.
Nutr J. 2009 Feb 10; 8:10.NJ

Abstract

To explore the effects of increasing fruit and vegetable intake and the resulting effects on levels of circulating micronutrients in a community-dwelling population with an already high consumption of fruits and vegetables, 112 volunteers (86% women) underwent targeted dietary counseling for three months. At the beginning of the study and after 4, 8 and 12 weeks a food frequency questionnaire was filled in, and plasma levels of dietary antioxidants as well as biomarkers of oxidative lipid and protein damage were determined. Compared to baseline, especially the intake of fruits was significantly improved after 3 months of intervention, and mean plasma levels of lutein, zeaxanthin, beta-cryptoxanthin, lycopene, alpha- and beta-carotene, retinol, alpha-tocopherol, vitamin C and vitamin B6 were increased. Biomarkers of oxidative stress remained unchanged. Thus, a nutritional counseling program is capable of improving plasma levels of antioxidants even in a health-conscious population. A decrease in biomarkers of oxidative stress, however, does not occur.

Authors+Show Affiliations

Institute of Biochemistry and Molecular Biology I, Heinrich-Heine University, Düsseldorf, Germany. polidori@uni-duesseldorf.deNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

19208246

Citation

Polidori, Maria Cristina, et al. "Plasma Micronutrient Status Is Improved After a 3-month Dietary Intervention With 5 Daily Portions of Fruits and Vegetables: Implications for Optimal Antioxidant Levels." Nutrition Journal, vol. 8, 2009, p. 10.
Polidori MC, Carrillo JC, Verde PE, et al. Plasma micronutrient status is improved after a 3-month dietary intervention with 5 daily portions of fruits and vegetables: implications for optimal antioxidant levels. Nutr J. 2009;8:10.
Polidori, M. C., Carrillo, J. C., Verde, P. E., Sies, H., Siegrist, J., & Stahl, W. (2009). Plasma micronutrient status is improved after a 3-month dietary intervention with 5 daily portions of fruits and vegetables: implications for optimal antioxidant levels. Nutrition Journal, 8, 10. https://doi.org/10.1186/1475-2891-8-10
Polidori MC, et al. Plasma Micronutrient Status Is Improved After a 3-month Dietary Intervention With 5 Daily Portions of Fruits and Vegetables: Implications for Optimal Antioxidant Levels. Nutr J. 2009 Feb 10;8:10. PubMed PMID: 19208246.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Plasma micronutrient status is improved after a 3-month dietary intervention with 5 daily portions of fruits and vegetables: implications for optimal antioxidant levels. AU - Polidori,Maria Cristina, AU - Carrillo,Juan-Carlos, AU - Verde,Pablo E, AU - Sies,Helmut, AU - Siegrist,Johannes, AU - Stahl,Wilhelm, Y1 - 2009/02/10/ PY - 2008/06/26/received PY - 2009/02/10/accepted PY - 2009/2/12/entrez PY - 2009/2/12/pubmed PY - 2009/5/13/medline SP - 10 EP - 10 JF - Nutrition journal JO - Nutr J VL - 8 N2 - To explore the effects of increasing fruit and vegetable intake and the resulting effects on levels of circulating micronutrients in a community-dwelling population with an already high consumption of fruits and vegetables, 112 volunteers (86% women) underwent targeted dietary counseling for three months. At the beginning of the study and after 4, 8 and 12 weeks a food frequency questionnaire was filled in, and plasma levels of dietary antioxidants as well as biomarkers of oxidative lipid and protein damage were determined. Compared to baseline, especially the intake of fruits was significantly improved after 3 months of intervention, and mean plasma levels of lutein, zeaxanthin, beta-cryptoxanthin, lycopene, alpha- and beta-carotene, retinol, alpha-tocopherol, vitamin C and vitamin B6 were increased. Biomarkers of oxidative stress remained unchanged. Thus, a nutritional counseling program is capable of improving plasma levels of antioxidants even in a health-conscious population. A decrease in biomarkers of oxidative stress, however, does not occur. SN - 1475-2891 UR - https://www.unboundmedicine.com/medline/citation/19208246/Plasma_micronutrient_status_is_improved_after_a_3_month_dietary_intervention_with_5_daily_portions_of_fruits_and_vegetables:_implications_for_optimal_antioxidant_levels_ L2 - https://nutritionj.biomedcentral.com/articles/10.1186/1475-2891-8-10 DB - PRIME DP - Unbound Medicine ER -