What compound found in lettuce is converted by the body into Vitamin A, which supports immune function and vision?
Answer
Beta-carotene
Vitamin A, indispensable for maintaining a healthy immune system and ensuring good vision, is not directly consumed in lettuce but is derived when the body processes beta-carotene. Beta-carotene is a carotenoid pigment found within the lettuce tissue, especially concentrated in darker varieties. When ingested, the body converts this precursor into active Vitamin A. Adequate intake of beta-carotene, particularly high in varieties like Romaine, is necessary for protecting eye health, specifically by helping to prevent conditions like cataracts and potentially slowing the progression of age-related macular degeneration.

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