How much protein is in spinach?

One cup of cooked spinach contains 5.35 grams of protein, according to WHFoods. Not only is spinach a very good source of protein but it also is an excellent source of vitamin B6, vitamin B2, phosphorus, potassium and dietary fiber. Spinach is highly nutritious and contains many other important vitamins.

Spinach is a good source of niacin and pantothenic acids, and it is high in omega-3 fatty acids. The vast combination of regular nutrients in spinach give it unique anti-inflammatory and antioxidant properties. This vegetable also contains high amounts of vitamins K1 and K2, which aid in protecting and maintaining healthy bones.