An easy way to add some nutrients into your diet is to add spinach powder. It is made by grinding the leafy vegetable into a fine powder. As a result of this process, most of the nutritional benefits of spinach are retained. You can use this powder in dips, bread, pasta, shakes and smoothies. Spinach powder has an extremely long shelf life when compared with leaf spinach. There is still a subtle spinach flavor that can add a touch of zest to mellow dishes or become nearly undetectable in other dishes.