lutein

/'lu:tiin/
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lutein

Lutein gives egg yolks their rich yellow color.

Definition
  1. Noun:
    • A yellow carotenoid pigment found in plants, animal fats, and egg yolks. It is a type of xanthophyll, which is an oxygen-containing carotenoid, and is important for eye health.
Usage
  • Noun:
    • Lutein is a nutrient that acts as an antioxidant in the body.
    • Foods rich in lutein include leafy green vegetables like spinach and kale.
    • The yellow color of egg yolk is partly due to the presence of lutein.
Advanced Usage
  • "Lutein accumulation": The process by which lutein builds up in tissues, particularly in the macula of the eye.
    • Dietary supplements can promote lutein accumulation in the retina.
  • "Lutein ester": A form of lutein bound to fatty acids, often found in supplements.
    • Lutein esters are commonly used in nutritional products for better stability.
Variants and Related Words
  • Luteinization (n): A biological process, typically referring to the transformation of a follicle in the ovary into the corpus luteum after ovulation. (Note: This is a related biological term but has a different primary meaning from the pigment 'lutein').
  • Zeaxanthin (n): A closely related yellow carotenoid pigment, often found alongside lutein in the human eye.
    • Lutein and zeaxanthin are the primary carotenoids in the macular pigment.
Synonyms
  • Xanthophyll: A class of yellow oxygen-containing carotenoid pigments to which lutein belongs.
  • Carotenoid: The broader class of organic pigments, which includes lutein.
Related Phrases
  • "Macular pigment": The protective layer in the eye's macula, composed largely of lutein and zeaxanthin.
    • A higher density of macular pigment, rich in lutein, is associated with a lower risk of age-related macular degeneration.
  • "Lutein supplement": A dietary product taken to increase lutein intake.
    • Many people take a lutein supplement for eye health.
Related Idioms

(There are no common idioms specifically featuring the word 'lutein' due to its technical nature. It is primarily used in scientific, nutritional, and medical contexts.)

lutein

Lutein gives egg yolks their rich yellow color.

Noun
  1. yellow carotenoid pigments in plants and animal fats and egg yolks

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