BACKGROUND/ OBJECTIVE:Lutein is a xanthophyll found in the chloroplasts of dark green leafy vegetables, chromoplasts of fruits, and egg yolk. Dietary, serum and macular lutein are inversely related to the risk of age-related macular degeneration. Although the lutein from egg is known to be more bioavailable than that from spinach, not much is known about lutein bioavailability from n-3 fatty acid enriched eggs and organic eggs, both of which are increasingly available to consumers. SUBJECTS/ METHODS: We determined the effects of feeding n-3 fatty acid-enriched eggs and organic eggs on serum lutein, zeaxanthin and β-carotene in 20 healthy lacto-ovo-vegetarian (LOV) adults using a single-blind, randomized, crossover study design with a 4-week washout between treatments: six organic eggs or six n-3 fatty acid enriched eggs per week or no egg control for 8 weeks each. RESULTS:Serum lutein was significantly higher in both egg treatments (P<0.009) compared with the control, but was not different between the two egg treatments. Serum β-carotene was also higher in the egg groups compared with control but only approached significance (P=0.066). Serum zeaxanthin increased in both egg treatments compared with control but did not reach statistical significance (P=0.139). CONCLUSION:n-3 fatty acid enriched eggs and organic eggs may both significantly increase serum lutein in healthy LOV consuming a predominately plant-based diet.
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BACKGROUND/ OBJECTIVE: Lutein is a xanthophyll found in the chloroplasts of dark green leafy vegetables, chromoplasts of fruits, and egg yolk. Dietary, serum and macular lutein are inversely related to the risk of age-related macular degeneration. Although the lutein from egg is known to be more bioavailable than that from spinach, not much is known about lutein bioavailability from n-3 fatty acid enriched eggs and organic eggs, both of which are increasingly available to consumers. SUBJECTS/ METHODS: We determined the effects of feeding n-3 fatty acid-enriched eggs and organic eggs on serum lutein, zeaxanthin and β-carotene in 20 healthy lacto-ovo-vegetarian (LOV) adults using a single-blind, randomized, crossover study design with a 4-week washout between treatments: six organic eggs or six n-3 fatty acid enriched eggs per week or no egg control for 8 weeks each. RESULTS: Serum lutein was significantly higher in both egg treatments (P<0.009) compared with the control, but was not different between the two egg treatments. Serum β-carotene was also higher in the egg groups compared with control but only approached significance (P=0.066). Serum zeaxanthin increased in both egg treatments compared with control but did not reach statistical significance (P=0.139). CONCLUSION:n-3 fatty acid enriched eggs and organic eggs may both significantly increase serum lutein in healthy LOV consuming a predominately plant-based diet.
Authors: Arthur Eumann Mesas; Rubén Fernández-Rodríguez; Vicente Martínez-Vizcaíno; José Francisco López-Gil; Sofía Fernández-Franco; Bruno Bizzozero-Peroni; Miriam Garrido-Miguel Journal: Front Nutr Date: 2022-06-24
Authors: Minu S Thomas; Michael Puglisi; Olga Malysheva; Marie A Caudill; Maria Sholola; Jessica L Cooperstone; Maria Luz Fernandez Journal: Nutrients Date: 2022-05-20 Impact factor: 6.706
Authors: Linda H Münger; Mar Garcia-Aloy; Rosa Vázquez-Fresno; Doreen Gille; Albert Remus R Rosana; Anna Passerini; María-Trinidad Soria-Florido; Grégory Pimentel; Tanvir Sajed; David S Wishart; Cristina Andres Lacueva; Guy Vergères; Giulia Praticò Journal: Genes Nutr Date: 2018-09-29 Impact factor: 5.523