Symptoms include fatigue and, because copper plays a role in immunity, imbalances can make you more susceptible to infections.drweil.com/drw/u/ART02871/copper.htmlHow Do I Choose the Best Copper Supplement?http://www.wisegeek.com/how-do-i-choose-the-best-copper-supplement.htmIn order to prevent a copper deficiency, be sure that you are eating foods that contain the nutrient, including beans, peas,