Doctor: Don't eat these kinds of fish anymore, and keep your mouth shut if you love to eat them
When discussing a healthy diet, fish is often considered a source of high-quality protein and omega-3 fatty acids. However, certain fish may have an increased risk of cancer due to the presence of harmful substances.
Fish with high levels of mercury are a major concern. Mercury is a toxic heavy metal that accumulates in aquatic ecosystems and is passed on to fish through the food chain. When humans consume mercury-rich fish, mercury can accumulate in the body, causing neurological damage and other health problems. Long-term or high intake of high-mercury fish is also associated with an increased risk of cancer.
Typical high-mercury fish species include sharks, swordfish, tuna (especially canned tuna), salmon, and kingfish. These fish are typically larger and have a longer lifespan, making them more likely to accumulate higher levels of mercury in their bodies.
Another issue of concern is polycyclic aromatic hydrocarbons (PAHs) and polybrominated diphenyl ethers (PBDEs). These harmful chemicals are commonly found in industrial pollution and can enter the food chain through water bodies. Fish, especially those that live in polluted waters, may contain these substances. Long-term consumption of these contaminated fish may increase the risk of cancer.
There are also certain health risks associated with farming fish. Antibiotics and other chemicals may be used in some fish farms to combat disease and promote growth. Residues of these substances can pose a threat to human health, especially for antibiotic resistance and endocrine disruption.
Not all fish should be considered a health risk. For example, fish such as salmon, mackerel, sardines, and herring, which are rich in Omega-3 fatty acids and low in mercury, can be used as healthy dietary choices. When choosing fish, it's best to prioritize those that come from clean waters and sustainable fisheries.
In order to reduce the health risks associated with fish intake, it is advisable to eat a varied diet and not to be overly dependent on one or a few types of fish. Limiting the intake of high-mercury fish is especially important for children, pregnant women, and women planning pregnancy.
While fish is an important part of a healthy diet, what kind of fish you choose and how much you consume needs to be carefully considered. By choosing your fish source wisely, you can enjoy the health benefits of fish while reducing potential health risks. A healthy diet should be varied and balanced, and the proportion and variety of fish in the diet should be reasonable to help maintain overall health.
