Rich in Vitamin C
Kale is an excellent source of vitamin C. Vitamin C is a water-soluble antioxidant that is critical to normal body function. Vitamin C deficiency can cause [4] bleeding gums, loosening of the teeth, livid spots on the skin, and low iron levels. Vitamin C is vital for quick wound healing and is necessary for collagen synthesis. Collagen is an important structural protein present in the bones, cartilage, tendon, and other connective tissues in the body. Human beings cannot make all the vitamin C they require on their own and have to get them from other sources. Kale is one of the best sources of vitamin C in the world, containing many times more vitamin C than most vegetables. One cup of raw kale contains more vitamin C than an orange.