Prevención y Nutrición 2010

B L Burns-Whitmore, E H Haddad, J Sabaté, K Jaceldo-Siegl, J Tanzman and S Rajaram

Abstract

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 8weeks each.

Results:
Serum lutein was significantly higher in both egg treatments (P<0.009) p="0.066)." p="">

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.


Fuente: http://www.nature.com/ejcn/journal/vaop/ncurrent/full/ejcn2010140a.html

Grupo Nº1