No doubt, spinach is one of the most nutritious among leafy vegetables out there. It is naturally abundant with plenty of essential minerals you need. Eating a cup of raw spinach can provide you with 167 mg of potassium. Meanwhile, you can get over 800 mg in one cup of cooked spinach. 

What’s more, this green wonder of a vegetable boasts 100% of vitamin K’s DRI. It’s also a great source of non-heme iron. Studies even back the anticancer and anti-inflammatory compounds that spinach offers.