Kiwi is a fruit with the richest source of lutein. It also has copper, a mineral vital in the growth of children because it helps strengthen the bones and immune system and promotes brain development. We find plenty of copper in kiwi fruits. It also contains potassium, more than bananas. Potassium helps the heart and blood pressure. Other minerals found in this green fruit: magnesium, iron, calcium, vitamin E, B6, C, folic acid, chromium. Kiwi seeds are holding all the nutrients, protein, vitamins, and minerals.