Author
 |
JOHNSON, ELIZABETH - TUFTS-HNRCA |
|
Submitted to: Food Reviews International
Publication Type: Review Article Publication Acceptance Date: 10/1/2003 Publication Date: 1/1/2004 Citation: JOHNSON, E.J. A BIOLOGICAL ROLE FOR LUTEIN (REVIEW). Food Reviews International. 2004;20:1-16. Interpretive Summary: Technical Abstract: Lutein, a non-provitamin A carotenoid found in dark green, leafy vegetables. Lutein, being fat-soluble, follows the same intestinal absorption path as dietary fat and is affected by the same factors that influence fat absorption. Compared to beta-carotene, another major carotenoid in diet and tissue, the bioavailability of lutein appears to be less influenced by food processing. Lutein has been strongly implicated as being protective against the eye diseases, age-related macular degeneration (AMD) and cataracts. In the eye, lutein may act as a blue light filter, to protect the underlying tissues from phototoxic damage. The mechanism by which lutein is involved in the prevention of eye diseases may also involve its role as an antioxidant. Dietary surveys indicate that average intakes of lutein in the U.S. may be below levels that are associated with disease prevention. Therefore, increased intakes of food sources rich in lutein may be warranted. |
