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Lutein ester (LE) is an important carotenoid fatty acid ester. It is a form in which lutein is present in nature and is produced by free non-esterification and fatty acid esterification. LE is one of the safe sources of lutein. Increasing lutein intake can prevent and treat age-related Lutein is a carotenoid with antioxidant properties and is commonly present in many fruits, vegetables, and egg yolk. Lutein affords protection against the development of the two common eye diseases of aging: cataract and macular degeneration. As the dietary lutein concentration is much lower
Lutein, a naturally occurring carotenoid, is widely distributed in fruits and vegetables and is particularly concentrated in the Tagetes erecta flower. Epidemiological studies suggest that a high lutein intake (6 mg/day) increases serum levels that are associated with a lower risk of cataract and
Lutein and its isomer zeaxanthin have gained considerable interest as possible nutritional ingredient in the prevention of age-related macular degeneration (AMD) in humans. Egg yolk is a rich source of these carotenoids. As an oxidative sensitive component, antioxidants such as α-tocopherol (T)
Age-related macular degeneration (ARMD) is inversely associated with the accumulation of lutein + zeaxanthin in the macula, but higher lutein intakes are inconsistently related to reduced risk of ARMD in epidemiologic studies. Resolution of efficacy awaits clinical trials designed with knowledge of
BACKGROUND
Current data suggest great variability in serum response following lutein ingestion from various sources.
OBJECTIVE
To compare the relative serum response during supplementation with free lutein (fL) and lutein esters (Le).
METHODS
72 volunteers (23-52 years; body mass index [BMI] >20 and
A low density of macular pigment may represent a risk factor for age-related macular degeneration (AMD) by permitting greater blue light damage. This study was carried out to determine the effects on macular pigment optical density of dietary supplementation with lutein, one of the pigment
Lutein may be protective against diseases such as age-related macular degeneration (ARMD). At present, data regarding bioavailability of lutein from various sources are insufficient. Healthy men (n = 10) participated in an intervention study with a crossover design. After a 2-wk washout period
In humans, as in plants, the xanthophyll lutein is believed to function in two important ways: first as a filter of high energy blue light, and second as an antioxidant that quenches and scavenges photo induced reactive oxygen species (ROS). Evidence suggests that lutein consumption is inversely