Open sidebar Copper-rich foods.  Foods high in copper? Copper is an essential mineral that plays many important roles in the body, including the production of red blood cells, maintenance of connective tissues, and proper functioning of the immune system. Here are some foods that are high in copper: Organ meats: Liver is the richest source of copper, followed by other organ meats such as kidney and heart. Seafood: Oysters, squid, lobster, crab, and clams are all high in copper. Nuts and seeds: Sesame seeds, sunflower seeds, cashews, almonds, and hazelnuts are all good sources of copper. Legumes: Lentils, chickpeas, and soybeans are all high in copper. Dark chocolate: High-quality dark chocolate contains significant amounts of copper. Leafy greens: Spinach, kale, and Swiss chard are all good sources of copper. Mushrooms: Shiitake, crimini, and white mushrooms are all high in copper. Whole grains: Brown rice, quinoa, and barley are all good sources of copper. It's important to note that while copper is an essential nutrient, excessive intake can be harmful. The recommended daily intake of copper for adults is about 900 micrograms per day. ChatGPT Feb 13 Version. Free Research Preview. Our goal is to make AI systems more natural and safe to interact with. Your feedback will help us improve.