HUMAN NUTRITION

Detailed explanation-1: -Fiber: Although both have fiber, spinach contains slightly more fiber than kale does. Protein/Iron: Kale has more protein than spinach, but spinach has more iron than kale.

Detailed explanation-2: -Kale. As one of the best dark green leafy vegetables, kale packs in the vitamins, minerals, and antioxidants. It has a bitter taste when eaten raw, but you get the most nutrients from kale when consumed this way.