Lutein has long been known as a
powerful nutritional agent useful for protecting vision in aging adults and
protecting against the sight-robbing condition known as macular degeneration.
New research published
in The Journal of Nutrition finds
that the carotenoid exhibits health-promoting anti-inflammatory and antioxidant
benefits that help to lower plaque forming oxidized LDL cholesterol particles
that promote arterial hardening and heart disease.
Lutein is found in abundance in
dark green leafy vegetables including spinach, broccoli, kale and cabbage. Most
adults and children should include a healthy serving of these vegetables as
part of a nutritionally balanced diet or look to supplement daily to
significantly lower heart disease risk from coronary plaque accumulation.
Lutein Accumulates in the Retina to Prevent Macular Degeneration
The study examined two groups of
guinea pigs known to exhibit similar vascular characteristics to humans. Both
groups were fed a diet high in cholesterol-laden foods for a period of 12
weeks, and half were supplemented with lutein. Carotenoids such as lutein are known to circulate
in the blood and are stored by the body for future use when tissue saturation
is reached. Research to date has shown how lutein accumulates in the retina to prevent
macular degeneration and support vision, but little is known about how the
compound impacts cardiovascular health.
Researchers understand that
mammals with the highest levels of carotenoids circulating in their blood have
the longest lifespan. Scientists were able to provide evidence that lutein is
continually being stored and drawn from tissue deposits as needed. The antioxidant
and anti-inflammatory properties of this important carotene provides a
significant degree of protection against the formation of arterial plaque and
atherosclerosis. Lutein reduces the number of small, dense oxidized LDL
cholesterol particles that compromise the elastic nature of the arteries that
supply blood to the heart.
Lutein is Concentrated in a Diet Filled with Fresh Fruits and
Vegetables
This is one of the first studies
to demonstrate that carotenoids such as lutein can provide health benefits to
multiple organs and should be consumed as part of a natural diet
comprising a rainbow of colors from organic vegetables and fruits. Scientists
have uncovered dozens of carotenoids and concede there are likely many more as
yet unknown compounds that exist in a complete matrix of whole foods.
Interestingly, nutritional
researchers have found that carotenoids from high quality supplements are
easier to absorb when compared to carotenes from foods that are bound to fiber.
Regardless of the source, carotenoids should be part of your daily antioxidant
dietary plan to prevent arterial plaque formation and lower the risk of
atherosclerosis.
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