Mercury is a naturally occurring heavy metal that can be found in the environment, particularly in water. It can enter the food chain when it is released into water bodies through industrial processes and can accumulate in certain fish species, such as shark, swordfish, and king mackerel. This accumulation makes these fish a source of mercury exposure for humans who consume them.
Mercury is a concern for health because it can have toxic effects, especially for vulnerable populations like pregnant women and young children. Exposure to high levels of mercury can lead to serious health issues, including damage to the nervous system, cognitive impairments, and developmental delays in children. Because of these potential health risks, it is important to be aware of mercury levels in certain fish and to limit consumption as needed.
In the human body, mercury does not have a beneficial function and can be harmful if accumulated over time. Once ingested, it can affect various systems, including the nervous system, kidneys, and immune system. The body struggles to eliminate mercury, which is why even small amounts can pose a risk if consumed frequently.
It is essential to be informed about mercury, especially when choosing seafood. Understanding which fish are high in mercury can help individuals make safer dietary choices to protect their health.