Foods With the Highest Pesticide Amounts Spinach Spinach is a superfood. It is loaded with a ton of nutrients.Dark leafy greens such as spinach are important for skin, hair and bone health. These leafy greens provide protein, iron, vitamins and minerals. Prev2 of 11Next Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X