Which compounds are recognized as a terrific source in the deep green beet greens for vision health?

Beta-carotene, lutein, and zeaxanthin

The text explicitly states that the deep green beet greens are recognized as a terrific source of specific compounds beneficial for vision health. These compounds are beta-carotene, lutein, and zeaxanthin. Beta-carotene is a precursor to Vitamin A, while lutein and zeaxanthin are carotenoids known to accumulate in the retina, helping to filter harmful blue light. Folate, copper, and potassium are mentioned as micronutrients primarily found in the root, and betalains are the general class of pigments responsible for the red color, not specifically tied only to the greens' vision benefits. Dietary nitrates are central to the cardiovascular mechanism, not listed as the key vision nutrients in the greens.