8. Vision health
Kale offers good supplies of lutein and zeaxanthin which are carotenoid antioxidants needed for good eye health. These carotenoids help prevent damage to the eyes from excessive exposure to ultraviolet light, as well as protect the retina against oxidative damage. At the same time, lutein and zeaxanthin are also known to reduce disability from glare, enhance contrast and reduce photo stress recovery times.
It has been studied that individuals who consume enough lutein and zeaxanthin have a much lower risk of age related eye disorders such as macular degeneration and cataracts.