Avocados They are also rich in copper and healthy fats, which are said to help maintain skin and hair health. Sweet Potatoes A good source of copper, sweet potatoes also contain beta-carotene ...

Legumes: Beans, lentils and chickpeas are rich in protein (made up of amino acids), zinc and copper. Lean meats: Chicken, ...

That other energy source critics like to refer ... Silver is also a good conductor, a little bit better than copper, but obviously there is a substantial price premium there.” ...