A recent public health update emphasizes the need to balance the benefits of fish with potential risks from environmental contaminants. On the plus side, fish is an excellent source of omega-3 fatty acids, which are linked to reduced risk of heart disease and stroke, improved cognitive function, and potential anti-inflammatory effects. It also provides high-quality protein, selenium, iodine, and vitamin D.
The downside is that fish can accumulate harmful substances from the environment, such as methylmercury, PCBs, dioxins, and other pollutants. These contaminants, especially methylmercury, can negatively impact the nervous system, reproductive health, and immune function. Pregnant women, breastfeeding mothers, and young children are particularly vulnerable. Public health guidelines therefore advise choosing fish species with lower contaminant levels and varying the diet to avoid overexposure.
About the Author
