Other health concerns connected with high cobalt levels consumption include nausea and vomiting, visual issues, dermatitis, thyroid damage, severe heart damage, and even death. People who consume cobalt products should take special precautions to avoid exposure to this metal because of its toxicity. Cobalt is found in some foods but also occurs naturally in the environment. Humans are exposed to cobalt through food, especially seafood; inhalation of dust from mining operations; and injection into animals for medical purposes. Exposure to high levels can be toxic for humans. The body uses cobalt to make blood cells, skin, bones, muscles, and nerves. Too much cobalt can be harmful to these tissues. Long-term exposure to low levels of cobalt may cause bone pain, weakness, and loss of muscle control. Higher doses are toxic to the brain, lungs, and heart. There are several sources of cobalt products for sale in the market today. Some contain small amounts of cobalt that are not a concern for healthy people. Others contain higher levels of the metal. Only specially designed stores will warn customers about products containing high levels of cobalt. The best way to keep away from high levels of cobalt is by only buying certified organic products.