Spinach has a high source of zeaxanthin and carotenoids that can flush out the free radicals from your body. Spinach is an excellent source of vitamin K as well as being a source of magnesium, calcium and phosphorus. Eating this leafy green veggie may benefit eye health, bone health, Helps Prevent Osteoporosis, Cuts Risk of Iron Deficiency Anemia, Strengthens the bone.