Here's why:
* Mercury levels: Some types of perch, especially those from larger bodies of water, can contain higher levels of mercury. Mercury is a neurotoxin that can harm a developing baby's brain and nervous system.
* PCBs and other contaminants: Fish can accumulate other contaminants like PCBs and dioxins, which can also be harmful to the fetus.
Tips for eating fish safely during pregnancy:
* Choose low-mercury fish: Salmon, shrimp, canned light tuna, and pollock are good options.
* Limit consumption of high-mercury fish: This includes swordfish, king mackerel, shark, and tilefish.
* Variety is key: Eat a variety of fish to reduce your exposure to any one contaminant.
* Talk to your doctor: They can provide personalized recommendations based on your individual needs and the fish available in your area.
Remember, it's always best to err on the side of caution when it comes to your health and the health of your baby.