It's a great source of vitamin C

Kale is high in fiber, antioxidants, calcium, vitamin K, iron, and a variety of other nutrients that can aid in the prevention of a range of diseases. Kale also contains vitamin C. Vitamin C helps the body build and retain collagen, a protein that gives skin, hair, and bones structure.

Vitamin C is a water-soluble antioxidant that has a variety of roles in the body's cells. It is required for the creation of collagen, the most abundant structural protein in the body, for example. Kale has a lot more vitamin C than most other veggies, roughly 4.5 times more than spinach. Kale is actually one of the greatest sources of vitamin C on the planet. A cup of raw kale has more vitamin C in it than an orange.