Antioxidants, anti-inflammatories, and vitamins that promote vision and bone health are what make this little ol’ green so super.  Just a half-cup provides more than five times your daily dose of vitamin K, which helps blood clot and builds strong bones. And those bones will be thanking spinach, too!   One cup of the stuff packs up to 12 percent of the recommended daily dose of calcium and enough Vitamin K to prevent bone loss.