Guide to Proactively Preventing Mercury Poisoning Through Diet

Mercury is a dangerous heavy metal when entering the human body. According to the World Health Organization (WHO), mercury in aquatic environments is often converted by bacteria into methylmercury (organic mercury), which facilitates bioaccumulation in marine life.

Large, long-lived predatory fish such as ocean tuna, sharks, swordfish, and king mackerel occupy higher positions in the food chain, leading to significantly higher concentrations of methylmercury in their muscle tissues compared to other species. Additionally, agricultural products grown in heavy metal-contaminated soil or freshwater fish living near mining, metallurgical, and chemical plants are also significant sources of exposure. Even animal organs from livestock raised on contaminated land are prone to accumulating high residues of heavy metals.

To minimize risks, consumers should prioritize choosing smaller fish with short lifespans, such as salmon, sardines, herring, or mackerel, as they are lower in the food chain and contain less mercury. Limiting the consumption of large predatory fish is a vital measure to protect one's health.

During food preparation, it is essential to remove internal organs, livers, and the black membrane in the fish's belly, as these parts often accumulate high levels of heavy metals and toxins. Meanwhile, incorporating foods rich in selenium (such as salmon, mushrooms, and sunflower seeds) can help neutralize the toxicity of methylmercury. Furthermore, a diet rich in soluble fiber from green vegetables and oats also assists in binding and eliminating heavy metals through the digestive tract naturally.