If you're in search of a true vegetable superhero, you just might have it in spinach. One cup of spinach has just 40 calories, and yet that serving far surpasses your daily needs for vitamins A and K and delivers plenty of manganese, folate and magnesium. Spinach also contains healthy antioxidants.
What's the result of all of these superingredients? This dark, leafy green isn't just helping your heart -- it's amping up your cancer-fighting capabilities and preserving brain function. The cancer-fighting and cholesterol-lowering power of antioxidants, the ability of magnesium to keep blood pressure in check, and folate's stroke-battling qualities are just a few of the reasons why Popeye the Sailor Man may have turned to spinach to give him a hand.