Nitrater, often referred to as nitrate, is a chemical compound that contains the nitrate ion, NO3-. It is commonly found in fertilizers, as it provides essential nitrogen to plants, promoting growth and development. Nitrates are also present in various foods and can be converted into nitrites in the body. In the environment, nitrates can enter water systems through agricultural runoff, leading to potential issues like eutrophication, which can harm aquatic life. While nitrates are generally safe in moderate amounts, excessive consumption can pose health risks, particularly for infants, as it can interfere with oxygen transport in the blood.