In livestock exposed to alkyl mercury, what is the recommended practice for human consumption?

• A. Do not eat edible organs/muscle.
• B. Cook meat thoroughly before eating.
• C. Only eat muscle, avoid organs.
• D. Mercury exposure has no effect on consumption.

Answer: (A)

When a livestock animal has alkyl mercury exposure, the toxin distributes to tissues that humans typically eat, and cooking does not reliably remove or destroy mercury compounds. To protect human health, the safest approach is to avoid consuming any edible tissues from the affected animals, including both organs and muscle. This minimizes the risk of mercury transfer to people, especially vulnerable groups. Other options assume cooking neutralizes the toxin or that only certain tissues are risky, but methylmercury persists in tissues and can pose serious health risks even after cooking, so the prudent course is not to eat those animals’ edible tissues.