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Consumption of organic diets does not affect intake and absorption of zinc and copper in men - evidence from two cross-over trials.
Food Funct. 2013 Feb 26; 4(3):409-19.FF

Abstract

Agricultural methods may affect the nutritional composition of plants and cause complex changes in the food matrix. Whether this affects the dietary absorption of minerals that are important for maintaining health thorough life remains unclear. We compared the effects of organic and conventional diets on intake and absorption of zinc and copper in men. Two double-blinded, cross-over, intervention trials (3 dietary periods of 12 days with 2-week-long wash-out) were performed in 2008 (n = 17) and 2009 (n = 16) in young men. The diets were based on 9 crops grown in rigidly controlled organic and conventional systems in 2 replications over 2 years. The primary outcomes were intake and absorption of zinc and copper. The absorption was determined by faecal excretion of stable enriched isotopes extrinsically added to the entire menu. Within each year, the intake and absorption of zinc (overall mean ± SD; 12.35 ± 0.47 mg per 10 MJ and 44.6% ± 12.1, respectively) and copper (overall mean ± SD; 2.12 ± 0.28 mg per 10 MJ and 41.2% ± 13.2, respectively) were not different between the organic and conventional diets. The growing season had no effect on zinc intake and absorption, but the copper intake was higher (P = 0.01) and absorption lower (P < 0.005) in 2008 compared with 2009 (overall mean absorption ± SD; 35.3% ± 13.5 in 2008 and 54.0% ± 10.7 in 2009). In conclusion, organic agriculture does not affect the intake and absorption of copper and zinc in men. Consequently, it does not seem to promote the health beneficial role of these minerals in vivo.

Authors+Show Affiliations

Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 30, DK-1958 Frederiksberg, Denmark. alzb@life.ku.dkNo affiliation info availableNo affiliation info availableNo 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

23192634

Citation

Mark, Alicja Budek, et al. "Consumption of Organic Diets Does Not Affect Intake and Absorption of Zinc and Copper in Men - Evidence From Two Cross-over Trials." Food & Function, vol. 4, no. 3, 2013, pp. 409-19.
Mark AB, Kápolna E, Laursen KH, et al. Consumption of organic diets does not affect intake and absorption of zinc and copper in men - evidence from two cross-over trials. Food Funct. 2013;4(3):409-19.
Mark, A. B., Kápolna, E., Laursen, K. H., Halekoh, U., Rasmussen, S. K., Husted, S., Larsen, E. H., & Bügel, S. (2013). Consumption of organic diets does not affect intake and absorption of zinc and copper in men - evidence from two cross-over trials. Food & Function, 4(3), 409-19. https://doi.org/10.1039/c2fo30247k
Mark AB, et al. Consumption of Organic Diets Does Not Affect Intake and Absorption of Zinc and Copper in Men - Evidence From Two Cross-over Trials. Food Funct. 2013 Feb 26;4(3):409-19. PubMed PMID: 23192634.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Consumption of organic diets does not affect intake and absorption of zinc and copper in men - evidence from two cross-over trials. AU - Mark,Alicja Budek, AU - Kápolna,Emese, AU - Laursen,Kristian H, AU - Halekoh,Ulrich, AU - Rasmussen,Søren K, AU - Husted,Søren, AU - Larsen,Erik H, AU - Bügel,Susanne, PY - 2012/11/30/entrez PY - 2012/11/30/pubmed PY - 2013/9/17/medline SP - 409 EP - 19 JF - Food & function JO - Food Funct VL - 4 IS - 3 N2 - Agricultural methods may affect the nutritional composition of plants and cause complex changes in the food matrix. Whether this affects the dietary absorption of minerals that are important for maintaining health thorough life remains unclear. We compared the effects of organic and conventional diets on intake and absorption of zinc and copper in men. Two double-blinded, cross-over, intervention trials (3 dietary periods of 12 days with 2-week-long wash-out) were performed in 2008 (n = 17) and 2009 (n = 16) in young men. The diets were based on 9 crops grown in rigidly controlled organic and conventional systems in 2 replications over 2 years. The primary outcomes were intake and absorption of zinc and copper. The absorption was determined by faecal excretion of stable enriched isotopes extrinsically added to the entire menu. Within each year, the intake and absorption of zinc (overall mean ± SD; 12.35 ± 0.47 mg per 10 MJ and 44.6% ± 12.1, respectively) and copper (overall mean ± SD; 2.12 ± 0.28 mg per 10 MJ and 41.2% ± 13.2, respectively) were not different between the organic and conventional diets. The growing season had no effect on zinc intake and absorption, but the copper intake was higher (P = 0.01) and absorption lower (P < 0.005) in 2008 compared with 2009 (overall mean absorption ± SD; 35.3% ± 13.5 in 2008 and 54.0% ± 10.7 in 2009). In conclusion, organic agriculture does not affect the intake and absorption of copper and zinc in men. Consequently, it does not seem to promote the health beneficial role of these minerals in vivo. SN - 2042-650X UR - https://www.unboundmedicine.com/medline/citation/23192634/Consumption_of_organic_diets_does_not_affect_intake_and_absorption_of_zinc_and_copper_in_men___evidence_from_two_cross_over_trials_ L2 - https://doi.org/10.1039/c2fo30247k DB - PRIME DP - Unbound Medicine ER -