New* - Best Lutein Featuring Biolut Marigold Ext., 60 VC - Benefits
• Maintains Healthy Visual Function*
It has been well established that lutein is present in high concentrations in the retinal tissue of the human eye. However, a study was conducted in human volunteers to determine whether taking lutein in supplement form actually increased the density of the carotenoid pigments present in the macula. In this study of eight individuals, researchers estimated the density of the macular pigments prior to having each individual take 10 mg of lutein daily in supplement form for 12 weeks. Plasma lutein concentrations were measured at 4-week intervals. During the course of the study, plasma levels increased five-fold from pre-supplement measures. It was also shown that macular pigment density increased by an average of 5.3% after 4 weeks due to increased deposition of lutein in optical tissues.1
A second study compared the oral bioavailability of esterified lutein, the form in Best Lutein, versus non-esterified lutein in 18 human volunteers. Serum levels of lutein were measured at particular timepoints after consumption of a single dose of lutein. Researchers found that in these individuals, the lutein ester formulation was nearly 62% more bioavailable than non-esterified lutein, as determined by a higher mean area under the curve (AUC) and higher serum concentrations.2
A study was also conducted to investigate the possible role of specific nutrients in protecting the lens of the eye against aging, a risk factor for compromised visual function. The study was comprised of 376 individuals aged from 18 to 75. Of the nutrients measured, it was found that the lenses of individuals with higher concentrations of lutein and zeaxanthin showed less of an effect from the aging process. The investigators concluded that these carotenoids may play a protective role in supporting the maintenance of healthy vision.3
In addition, a double-blind placebo controlled trial was performed in ninety individuals who had signs of compromised ...
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