Which carotenoid antioxidants in kale actively filter out harmful blue light for vision protection?
Answer
Lutein and zeaxanthin
Kale is particularly rich in two specific carotenoid antioxidants crucial for maintaining visual health over time: lutein and zeaxanthin. These compounds perform the critical biological function of actively filtering out harmful high-energy blue light that penetrates the eye. By acting as internal filters, lutein and zeaxanthin offer a degree of proactive protection against common age-related ocular conditions, specifically cataracts and age-related macular degeneration (AMD). Regularly consuming foods abundant in these specific carotenoids is considered a proactive dietary measure for sustaining long-term visual acuity, especially as natural age-related vision decline is a consideration.
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