3. Kale Nutrition
However kale is no chump either—particularly when it comes to calcium. The average serving of kale contains more calcium than milk! Plus, impressive amounts of vitamin A and vitamin K, which prevent blood clots, Alzheimer’s disease, and age-related bone loss.
Don’t forget that kale delivers the goods when it comes to vitamin C. In fact, USDA data shows that kale packs 4 times the antioxidant punch compared to spinach.