Uncovering the Mystery of Tuna Fish: Is Its Mercury Content Really Dangerous?

By. Alfian - 21 Feb 2025

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lautnusantara.com Tuna is a pelagic fish belonging to the scombridae, especially in the genus Thunnus. Tuna is known as a fast swimmer with an aerodynamic body and the ability to migrate thousands of kilometers. They live in tropical and subtropical waters around the world. Tuna is delicious and nutritious, but there are concerns about the mercury content in it. Mercury is a heavy metal that can be found naturally in the environment, but human activities such as coal burning and the mining industry have increased mercury levels in water and the sea. This mercury can then accumulate in the bodies of fish, including tuna.

1. Why is Mercury Dangerous?
Mercury, especially in the form of methylmercury, can be harmful to human health. Exposure to mercury can cause disorders of the nervous system, brain development, kidneys, and other organs. Pregnant women, nursing mothers, infants, and children are particularly susceptible to the negative effects of mercury.

2. Some of the dangers of mercury to health:

  • Nervous Disorders: Mercury can damage the nervous system, causing problems such as tremors, impaired coordination, difficulty speaking, and memory problems.
  • Developmental Disorders: In pregnant women, mercury can cross the placenta and affect the fetus’ brain development, causing cognitive problems, developmental delays, and birth defects.
  • Kidney Damage: High levels of mercury exposure can damage the kidneys and lead to kidney problems
  • Cardiovascular Problems: Some studies suggest that mercury may increase the risk of cardiovascular problems such as heart disease and high blood pressure.

3. Mercury Content in Tuna
The mercury content in tuna varies depending on the type of tuna, the size of the fish, and the area where it is caught. Larger, longer-lived tuna tend to have higher mercury levels because they have accumulated mercury over their lifetime.

The mercury content in tuna does need to be watched out for. However, by choosing the right type of tuna, limiting consumption, and following safety tips, you can still enjoy the benefits of tuna as part of your healthy diet. Important to remember: The information in this article is general in nature only and does not replace advice from a doctor or nutritionist. Always consult a health professional for more personalized information that is tailored to your condition.

 

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