Why is cod often recommended as a safer seafood choice for pregnant women compared to species like swordfish?
Answer
Its mercury levels are typically low, especially when compared to large, predatory species
Seafood safety during pregnancy heavily relies on minimizing exposure to heavy metals, particularly mercury. Cod is distinguished by having comparatively low mercury levels, which is a significant advantage over larger, longer-lived predatory fish such as shark or swordfish that accumulate higher concentrations of mercury over time. This favorable low-mercury risk profile is why medical guidelines frequently endorse cod as one of the better and safer seafood choices for vulnerable populations, including pregnant women and children, allowing them to benefit from high-quality protein without undue contaminant risk.
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