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Lutein is a xanthophyll and phytonutrient (health boosting chemical compounds that can be found in plants). Green leafy vegetables are the best food source of this natural nutrient. In terms of health benefits it is a potent antioxidant and may also have a range of additional benefits. In this article I will be providing a full breakdown of lutein and how it boosts human health.
1) HEALTH BENEFITS:
As [url=http://www.rtnagel.com/louboutin.php]louboutin pas cher[/url] mentioned above, lutein is an antioxidant that can keep your body's cells safe from dangerous free radicals. Provisional studies indicate [url=http://www.1855sacramento.com/peuterey.php]giubbotti peuterey[/url] that this xanthophyll may also protect the eyes from cataracts (clouding on the lenses of the eyes), macular degeneration and photophobia (a condition where your eyes become very sensitive to light). Additionally, it may protect against atherosclerosis (a condition that leads to hard plaques forming in [url=http://www.rtnagel.com/louboutin.php]louboutin[/url] your artery walls and restricting the flow of blood), cancer (a disease where your body's cells start to grow rapidly and uncontrollably), heart disease and ultraviolet (UV) damage. However, further research is required [url=http://www.rtnagel.com/airjordan.php]jordan pas cher[/url] before these potential benefits can be confirmed.
2) RECOMMENDED DAILY ALLOWANCE (RDA):
Lutein is not believed to be essential in humans so no official RDA has been established. However, a number of [url=http://www.rtnagel.com/airjordan.php]nike air jordan pas cher[/url] experts suggest consuming between 6 milligrams (mg) and 10mg of this phytonutrient each day to promote optimal health.
3) FOOD SOURCES:
Green leafy vegetables are the best food source of lutein with collards (7.7mg per 100 grams (g)), [url=http://www.rathmell-arch.co.uk/hollister.html]hollister uk[/url] kale (18.2mg per 100g), mustard greens (6mg per 100g), parsley (5.6mg per 100g), spinach (12.2mg per 100g) and turnip greens (8.4mg per 100g) being some of the top sources.
4) DEFICIENCY SYMPTOMS:
Lutein is not believed [url=http://www.sandvikfw.net/shopuk.php]hollister sale[/url] to be essential for human survival [url=http://www.rivaluta.it/css/moncler.html]moncler outlet[/url] so has no confirmed deficiency symptoms. Some studies have suggested that failing to get enough of this xanthophyll in the long term can cause chronic diseases such [url=http://www.vivid-host.com/barbour.htm]barbour uk[/url] as cancer and make macular degeneration more likely. However, there are no studies available to back these claims.
5) OVERDOSE SYMPTOMS:
Natural lutein is safe for human consumption. However, ingesting high levels of lutein supplements [url=http://www.achbanker.com/home.php]www.achbanker.com/home.php[/url] can lead to carotenemia (a [url=http://www.mansmanifesto.com]doudoune moncler[/url] health disorder where your skin becomes orange coloured). Fortunately, carotenemia is not harmful and can be reversed by lowering your consumption of this xanthophyll. 1 study has also reported that consuming large amounts of lutein supplements may increase your contracting lung cancer but the validity of this study has been questioned by numerous experts.
6) SUMMARY:
Although a lot of the benefits discussed in this article still need to be fully confirmed you should definitely make sure you are eating your greens. Green leafy vegetables provide your body with high levels of this xanthophyll plus many other health boosting nutrients which gives your health a real kick.
Tom Parker owns Free [url=http://www.achbanker.com/home.php]hollister[/url] Fitness Tips - a fantastic source of free, impartial fitness advice. You can learn more about lutein, the xanthophylls and the many potential xanthophyll benefits by visiting his website.

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